▲ 853 ▼ The HDMI Forum rejected AMD's open source HDMI 2.1 implementation (www.gamingonlinux.com) submitted 2 years ago by smileyhead@discuss.tchncs.de to c/technology@lemmy.world 153 comments fedilink hide all child comments
[–] dinckelman@lemmy.world 314 points 2 years ago (51 children) DisplayPort already exists permalink fedilink source parent hideshow 51 child comments replies: [–] Tja@programming.dev 127 points 2 years ago (9 children) We cannot have two standards, that's ridiculous! We need to develop one universal standard that covers everyone's use cases. permalink fedilink source parent hideshow 9 child comments replies: [–] SlopppyEngineer@lemmy.world 131 points 2 years ago* There are now three competing standards. https://xkcd.com/927/ permalink fedilink source parent [–] baropithecus@lemmy.world 42 points 2 years ago (3 children) I know what you are referencing, but displayport already covers everybody's use cases permalink fedilink source parent hideshow 3 child comments replies: [–] ___@lemm.ee 10 points 2 years ago (1 child) Oh? Let me CEC on that.. permalink fedilink source parent hideshow 1 child comment replies: [–] Thunderbird4@lemmy.world 6 points 2 years ago* I’ll just pull it up on this display that’s more than 9 feet away from the source… permalink fedilink source parent [–] pewgar_seemsimandroid@lemmy.blahaj.zone 10 points 2 years ago #switchtodisplayport permalink fedilink source parent [–] Tattorack@lemmy.world 21 points 2 years ago Yes, I agree. And it needs to be open bloody source!! permalink fedilink source parent [–] sunbeam60@lemmy.one 20 points 2 years ago (2 children) Hi, my name is USB-C! permalink fedilink source parent hideshow 2 child comments replies: [–] Holzkohlen@feddit.de 25 points 2 years ago* (1 child) And what does that use? That's right it's Displayport Alternate Mode! Oh you've got Thunderbolt? Guess what, also Displayport! permalink fedilink source parent hideshow 1 child comment replies: [–] Tja@programming.dev 10 points 2 years ago Chuck Testa! permalink fedilink source parent [–] darth_helmet@sh.itjust.works 55 points 2 years ago (3 children) Hard to find on non-pc gear, but that’s a fair point permalink fedilink source parent hideshow 3 child comments replies: [–] frezik@midwest.social 16 points 2 years ago (1 child) It's usually easy enough to adapt it as needed. It can typically send signals compatible with HDMI and DVI-D just fine. permalink fedilink source parent hideshow 1 child comment replies: [–] zarenki@lemmy.ml 11 points 2 years ago The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features. permalink fedilink source parent [–] pewgar_seemsimandroid@lemmy.blahaj.zone 0 points 2 years ago can't you just mod it? permalink fedilink source parent [–] altima_neo@lemmy.zip 22 points 2 years ago (30 children) And also USB c permalink fedilink source parent hideshow 30 child comments replies: [–] BetaDoggo_@lemmy.world 87 points 2 years ago (23 children) USB-C display output uses the Display Port protocol permalink fedilink source parent hideshow 23 child comments replies: [–] ABCDE@lemmy.world 24 points 2 years ago (22 children) Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now. permalink fedilink source parent hideshow 22 child comments replies: [–] BetaDoggo_@lemmy.world 52 points 2 years ago (14 children) I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself. The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables. Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess. permalink fedilink source parent hideshow 14 child comments replies: [–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent [–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent [–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent [–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent [–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent [–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent [–] frezik@midwest.social 6 points 2 years ago (6 children) There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR. permalink fedilink source parent hideshow 6 child comments replies: [–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent [–] Player2@lemm.ee 20 points 2 years ago (1 child) USB C is just a connector, you might be referring to Displayport over USB C which is basically just the same standard with a different connector at the end. That or Thunderbolt I guess permalink fedilink source parent hideshow 1 child comment replies: [–] Chriswild@lemmy.world 4 points 2 years ago I thought thunderbolt was DP passthrough as well permalink fedilink source parent [–] trafficnab@lemmy.ca 13 points 2 years ago USB C seems like a good idea but in reality all it really did was take my 5 different, not interchangeable, but visually distinct, cables, and make them all look identical and require labeling permalink fedilink source parent [–] admiralteal@kbin.social 8 points 2 years ago (1 child) I love having mysterious cables that may or may not do things I expect them to when plugged into ports that may or may not support the features I think they do. permalink fedilink source parent hideshow 1 child comment replies: [–] trafficnab@lemmy.ca 4 points 2 years ago If the implementation is so broad that I have to break out my label maker, can we even really call it a "standard" permalink fedilink source parent load more comments (1 reply) [+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (5 children) [deleted] permalink fedilink source parent hideshow 5 child comments replies: [–] Eldritch@lemmy.world 0 points 2 years ago (2 children) Linux has very little to do with DisplayPort. My Windows PCs use DisplayPort. You can get passive adapters to switch from HDMI to DisplayPort etc. permalink fedilink source parent hideshow 2 child comments replies: [+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (1 child) [deleted] permalink fedilink source parent hideshow 1 child comment replies: [–] Malfeasant@lemmy.world 1 point 2 years ago The problem is those passive adapters only work because one side switches to the other's protocol. permalink fedilink source parent load more comments (2 replies)
[–] Tja@programming.dev 127 points 2 years ago (9 children) We cannot have two standards, that's ridiculous! We need to develop one universal standard that covers everyone's use cases. permalink fedilink source parent hideshow 9 child comments replies: [–] SlopppyEngineer@lemmy.world 131 points 2 years ago* There are now three competing standards. https://xkcd.com/927/ permalink fedilink source parent [–] baropithecus@lemmy.world 42 points 2 years ago (3 children) I know what you are referencing, but displayport already covers everybody's use cases permalink fedilink source parent hideshow 3 child comments replies: [–] ___@lemm.ee 10 points 2 years ago (1 child) Oh? Let me CEC on that.. permalink fedilink source parent hideshow 1 child comment replies: [–] Thunderbird4@lemmy.world 6 points 2 years ago* I’ll just pull it up on this display that’s more than 9 feet away from the source… permalink fedilink source parent [–] pewgar_seemsimandroid@lemmy.blahaj.zone 10 points 2 years ago #switchtodisplayport permalink fedilink source parent [–] Tattorack@lemmy.world 21 points 2 years ago Yes, I agree. And it needs to be open bloody source!! permalink fedilink source parent [–] sunbeam60@lemmy.one 20 points 2 years ago (2 children) Hi, my name is USB-C! permalink fedilink source parent hideshow 2 child comments replies: [–] Holzkohlen@feddit.de 25 points 2 years ago* (1 child) And what does that use? That's right it's Displayport Alternate Mode! Oh you've got Thunderbolt? Guess what, also Displayport! permalink fedilink source parent hideshow 1 child comment replies: [–] Tja@programming.dev 10 points 2 years ago Chuck Testa! permalink fedilink source parent
[–] SlopppyEngineer@lemmy.world 131 points 2 years ago* There are now three competing standards. https://xkcd.com/927/ permalink fedilink source parent
[–] baropithecus@lemmy.world 42 points 2 years ago (3 children) I know what you are referencing, but displayport already covers everybody's use cases permalink fedilink source parent hideshow 3 child comments replies: [–] ___@lemm.ee 10 points 2 years ago (1 child) Oh? Let me CEC on that.. permalink fedilink source parent hideshow 1 child comment replies: [–] Thunderbird4@lemmy.world 6 points 2 years ago* I’ll just pull it up on this display that’s more than 9 feet away from the source… permalink fedilink source parent [–] pewgar_seemsimandroid@lemmy.blahaj.zone 10 points 2 years ago #switchtodisplayport permalink fedilink source parent
[–] ___@lemm.ee 10 points 2 years ago (1 child) Oh? Let me CEC on that.. permalink fedilink source parent hideshow 1 child comment replies: [–] Thunderbird4@lemmy.world 6 points 2 years ago* I’ll just pull it up on this display that’s more than 9 feet away from the source… permalink fedilink source parent
[–] Thunderbird4@lemmy.world 6 points 2 years ago* I’ll just pull it up on this display that’s more than 9 feet away from the source… permalink fedilink source parent
[–] pewgar_seemsimandroid@lemmy.blahaj.zone 10 points 2 years ago #switchtodisplayport permalink fedilink source parent
[–] Tattorack@lemmy.world 21 points 2 years ago Yes, I agree. And it needs to be open bloody source!! permalink fedilink source parent
[–] sunbeam60@lemmy.one 20 points 2 years ago (2 children) Hi, my name is USB-C! permalink fedilink source parent hideshow 2 child comments replies: [–] Holzkohlen@feddit.de 25 points 2 years ago* (1 child) And what does that use? That's right it's Displayport Alternate Mode! Oh you've got Thunderbolt? Guess what, also Displayport! permalink fedilink source parent hideshow 1 child comment replies: [–] Tja@programming.dev 10 points 2 years ago Chuck Testa! permalink fedilink source parent
[–] Holzkohlen@feddit.de 25 points 2 years ago* (1 child) And what does that use? That's right it's Displayport Alternate Mode! Oh you've got Thunderbolt? Guess what, also Displayport! permalink fedilink source parent hideshow 1 child comment replies: [–] Tja@programming.dev 10 points 2 years ago Chuck Testa! permalink fedilink source parent
[–] darth_helmet@sh.itjust.works 55 points 2 years ago (3 children) Hard to find on non-pc gear, but that’s a fair point permalink fedilink source parent hideshow 3 child comments replies: [–] frezik@midwest.social 16 points 2 years ago (1 child) It's usually easy enough to adapt it as needed. It can typically send signals compatible with HDMI and DVI-D just fine. permalink fedilink source parent hideshow 1 child comment replies: [–] zarenki@lemmy.ml 11 points 2 years ago The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features. permalink fedilink source parent [–] pewgar_seemsimandroid@lemmy.blahaj.zone 0 points 2 years ago can't you just mod it? permalink fedilink source parent
[–] frezik@midwest.social 16 points 2 years ago (1 child) It's usually easy enough to adapt it as needed. It can typically send signals compatible with HDMI and DVI-D just fine. permalink fedilink source parent hideshow 1 child comment replies: [–] zarenki@lemmy.ml 11 points 2 years ago The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features. permalink fedilink source parent
[–] zarenki@lemmy.ml 11 points 2 years ago The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features. permalink fedilink source parent
[–] pewgar_seemsimandroid@lemmy.blahaj.zone 0 points 2 years ago can't you just mod it? permalink fedilink source parent
[–] altima_neo@lemmy.zip 22 points 2 years ago (30 children) And also USB c permalink fedilink source parent hideshow 30 child comments replies: [–] BetaDoggo_@lemmy.world 87 points 2 years ago (23 children) USB-C display output uses the Display Port protocol permalink fedilink source parent hideshow 23 child comments replies: [–] ABCDE@lemmy.world 24 points 2 years ago (22 children) Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now. permalink fedilink source parent hideshow 22 child comments replies: [–] BetaDoggo_@lemmy.world 52 points 2 years ago (14 children) I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself. The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables. Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess. permalink fedilink source parent hideshow 14 child comments replies: [–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent [–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent [–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent [–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent [–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent [–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent [–] frezik@midwest.social 6 points 2 years ago (6 children) There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR. permalink fedilink source parent hideshow 6 child comments replies: [–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent [–] Player2@lemm.ee 20 points 2 years ago (1 child) USB C is just a connector, you might be referring to Displayport over USB C which is basically just the same standard with a different connector at the end. That or Thunderbolt I guess permalink fedilink source parent hideshow 1 child comment replies: [–] Chriswild@lemmy.world 4 points 2 years ago I thought thunderbolt was DP passthrough as well permalink fedilink source parent [–] trafficnab@lemmy.ca 13 points 2 years ago USB C seems like a good idea but in reality all it really did was take my 5 different, not interchangeable, but visually distinct, cables, and make them all look identical and require labeling permalink fedilink source parent [–] admiralteal@kbin.social 8 points 2 years ago (1 child) I love having mysterious cables that may or may not do things I expect them to when plugged into ports that may or may not support the features I think they do. permalink fedilink source parent hideshow 1 child comment replies: [–] trafficnab@lemmy.ca 4 points 2 years ago If the implementation is so broad that I have to break out my label maker, can we even really call it a "standard" permalink fedilink source parent load more comments (1 reply)
[–] BetaDoggo_@lemmy.world 87 points 2 years ago (23 children) USB-C display output uses the Display Port protocol permalink fedilink source parent hideshow 23 child comments replies: [–] ABCDE@lemmy.world 24 points 2 years ago (22 children) Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now. permalink fedilink source parent hideshow 22 child comments replies: [–] BetaDoggo_@lemmy.world 52 points 2 years ago (14 children) I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself. The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables. Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess. permalink fedilink source parent hideshow 14 child comments replies: [–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent [–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent [–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent [–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent [–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent [–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent [–] frezik@midwest.social 6 points 2 years ago (6 children) There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR. permalink fedilink source parent hideshow 6 child comments replies: [–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent
[–] ABCDE@lemmy.world 24 points 2 years ago (22 children) Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now. permalink fedilink source parent hideshow 22 child comments replies: [–] BetaDoggo_@lemmy.world 52 points 2 years ago (14 children) I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself. The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables. Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess. permalink fedilink source parent hideshow 14 child comments replies: [–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent [–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent [–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent [–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent [–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent [–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent [–] frezik@midwest.social 6 points 2 years ago (6 children) There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR. permalink fedilink source parent hideshow 6 child comments replies: [–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent
[–] BetaDoggo_@lemmy.world 52 points 2 years ago (14 children) I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself. The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables. Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess. permalink fedilink source parent hideshow 14 child comments replies: [–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent [–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent [–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent [–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent [–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent [–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent
[–] strawberry@kbin.run 17 points 2 years ago* (7 children) would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector? better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc permalink fedilink source parent hideshow 7 child comments replies: [–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent [–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent
[–] Flipper@feddit.de 20 points 2 years ago (5 children) Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion. permalink fedilink source parent hideshow 5 child comments replies: [–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent
[–] strawberry@kbin.run 6 points 2 years ago (4 children) the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol permalink fedilink source parent hideshow 4 child comments replies: [–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent
[–] Flipper@feddit.de 2 points 2 years ago (3 children) Don't worry, they made it worse with usb 4. permalink fedilink source parent hideshow 3 child comments replies: [–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent
[–] strawberry@kbin.run 1 point 2 years ago (2 children) oh they did? how so? permalink fedilink source parent hideshow 2 child comments replies: [–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent
[–] Flipper@feddit.de 3 points 2 years ago (1 child) USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0 permalink fedilink source parent hideshow 1 child comment replies: [–] strawberry@kbin.run 4 points 2 years ago jesus what the fuck permalink fedilink source parent
[–] jabathekek@sopuli.xyz 3 points 2 years ago Please think of the shareholders... :( permalink fedilink source parent
[–] jaxxed@lemmy.world 4 points 2 years ago (1 child) I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour. permalink fedilink source parent hideshow 1 child comment replies: [–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent
[–] ABCDE@lemmy.world 1 point 2 years ago 4K works for mine (it's 3.2). permalink fedilink source parent
[–] ABCDE@lemmy.world 3 points 2 years ago Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is. permalink fedilink source parent
[–] moon@lemmy.cafe 1 point 2 years ago Yeah I have multiple USB cables, some at 30w, and some at 140w. Get them mixed up all the time! More companies need to at least brand the wattage on the connectors. permalink fedilink source parent
[–] Mr_Dr_Oink@lemmy.world 1 point 2 years ago Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres permalink fedilink source parent
[–] Freestylesno@lemmy.world 0 points 2 years ago This is the big issue I have with with "USB C". USB c is just the connector which can be used for so many things. What actual is supported depends on things you can't see, like the cable construction or what the device supports. permalink fedilink source parent
[–] frezik@midwest.social 6 points 2 years ago (6 children) There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR. permalink fedilink source parent hideshow 6 child comments replies: [–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent
[–] ABCDE@lemmy.world 1 point 2 years ago (5 children) That doesn't even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn't imagine that would hit the limit. permalink fedilink source parent hideshow 5 child comments replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent [–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent
[–] GeniusIsme@lemmy.world 2 points 2 years ago (3 children) It is trivial arithmetic: 4.52403840*2160 ≈ 9 GB/ s. Not even close. Even worse, that cable will struggle to get ordinary 60hz 4k delivered. permalink fedilink source parent hideshow 3 child comments replies: [–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent [–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent
[–] pirat@lemmy.world 3 points 2 years ago* 4.5 × 240 × 3840 × 2160 ≈ 9 GB/s It seems markdown formatting ruined your numbers because of the asterisks. Whatever is written between two of those turns italic, so they're not ideal for multiplication symbols here on Lemmy (or any other place that implements markdown formatting). permalink fedilink source parent
[–] ABCDE@lemmy.world 1 point 2 years ago (1 child) I think the maths got a bit funky there. I don't think a cable capable of such speeds would struggled to do 60Hz at 4K, it surely doesn't need close to a gigabyte a second? permalink fedilink source parent hideshow 1 child comment replies: [–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent
[–] GeniusIsme@lemmy.world 2 points 2 years ago It surely does. Check pirates post for clean math formatting permalink fedilink source parent
[–] frezik@midwest.social 2 points 2 years ago USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth: https://en.wikipedia.org/wiki/DisplayPort See the section "Resolution and refresh frequency limits". The table there shows it'd be able to do 4k/144hz/10bpp just fine, but can't keep above 60hz for 8k. Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode. permalink fedilink source parent
[–] Player2@lemm.ee 20 points 2 years ago (1 child) USB C is just a connector, you might be referring to Displayport over USB C which is basically just the same standard with a different connector at the end. That or Thunderbolt I guess permalink fedilink source parent hideshow 1 child comment replies: [–] Chriswild@lemmy.world 4 points 2 years ago I thought thunderbolt was DP passthrough as well permalink fedilink source parent
[–] Chriswild@lemmy.world 4 points 2 years ago I thought thunderbolt was DP passthrough as well permalink fedilink source parent
[–] trafficnab@lemmy.ca 13 points 2 years ago USB C seems like a good idea but in reality all it really did was take my 5 different, not interchangeable, but visually distinct, cables, and make them all look identical and require labeling permalink fedilink source parent
[–] admiralteal@kbin.social 8 points 2 years ago (1 child) I love having mysterious cables that may or may not do things I expect them to when plugged into ports that may or may not support the features I think they do. permalink fedilink source parent hideshow 1 child comment replies: [–] trafficnab@lemmy.ca 4 points 2 years ago If the implementation is so broad that I have to break out my label maker, can we even really call it a "standard" permalink fedilink source parent
[–] trafficnab@lemmy.ca 4 points 2 years ago If the implementation is so broad that I have to break out my label maker, can we even really call it a "standard" permalink fedilink source parent
[+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (5 children) [deleted] permalink fedilink source parent hideshow 5 child comments replies: [–] Eldritch@lemmy.world 0 points 2 years ago (2 children) Linux has very little to do with DisplayPort. My Windows PCs use DisplayPort. You can get passive adapters to switch from HDMI to DisplayPort etc. permalink fedilink source parent hideshow 2 child comments replies: [+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (1 child) [deleted] permalink fedilink source parent hideshow 1 child comment replies: [–] Malfeasant@lemmy.world 1 point 2 years ago The problem is those passive adapters only work because one side switches to the other's protocol. permalink fedilink source parent load more comments (2 replies)
[–] Eldritch@lemmy.world 0 points 2 years ago (2 children) Linux has very little to do with DisplayPort. My Windows PCs use DisplayPort. You can get passive adapters to switch from HDMI to DisplayPort etc. permalink fedilink source parent hideshow 2 child comments replies: [+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (1 child) [deleted] permalink fedilink source parent hideshow 1 child comment replies: [–] Malfeasant@lemmy.world 1 point 2 years ago The problem is those passive adapters only work because one side switches to the other's protocol. permalink fedilink source parent
[+] zelifcam@lemmy.world 13 points 2 years ago* (last edited 2 months ago) (1 child) [deleted] permalink fedilink source parent hideshow 1 child comment replies: [–] Malfeasant@lemmy.world 1 point 2 years ago The problem is those passive adapters only work because one side switches to the other's protocol. permalink fedilink source parent
[–] Malfeasant@lemmy.world 1 point 2 years ago The problem is those passive adapters only work because one side switches to the other's protocol. permalink fedilink source parent