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AMD Submits HDMI 2.1 FRL Support For Linux Kernel 7.2 (www.phoronix.com)
submitted 4 months ago by to c/linux_gaming@lemmy.world
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[–] 32 points 4 months ago (23 children)

Sweet. Soon I won't be chained to shitty android boxes for 4k streaming needs.

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  • [–] 6 points 4 months ago (19 children)

    Why? HDMI 2.0 works fine.

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  • [–] 26 points 4 months ago (18 children)

    Try Linux on a 4k HDR 120hz TV and see what happens.

    This is only being fixed because Valve is releasing an HDMI console and pressuring both AMD and the HDMI forum to get their shit together. Although AMD has attempted to get it done in the past, it is only being addressed now.

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  • [–] 9 points 4 months ago* (2 children)

    I thought it was being pushed now because mkopec managed to implement a partial, clean room reverse engineered version first using register captures from the Windows driver.

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  • [–] 1 point 4 months ago (2 children)

    I've been using linux with 4k120 tv with amd gpu for about half a year. dp to hdmi 2.1 cable works without issues.

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  • [–] 0 points 4 months ago (2 children)

    Try Linux on a 4k HDR 120hz TV and see what happens.

    It works fine, with chroma subsampling. At least I personally don't ever notice it on the TV.

    That's not to say this getting fixed isn't important, but it's mostly relevant for monitors and maybe smaller TVs that you sit closer to.

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  • [–] -2 points 4 months ago (8 children)

    What content is streaming at 120hz? Otherwise, 4K 60hz HDR is fine on 2.0

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  • [–] 8 points 4 months ago (1 child)

    4K 60Hz HDR is still limited to 8 bit color, which is unsuitable for HDR. You'd have to go down to 30Hz to get 10 bit color on HDMI 2.0.

    Meanwhile with this patch, I can do 4K 120Hz with 12 bit color.

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  • [–] 7 points 4 months ago (4 children)

    Videogames

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  • [–] 3 points 4 months ago (2 children)

    4K 60hz is about 18GB/s and it's being sent down a 1GB/s pipe typically when streamed. You're not getting all the data. It's really compressed to fit and the color space is usually set to 4:2:0 to again save bandwidth.

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  • [–] 1 point 4 months ago

    4K 60hz is about 18GB/s and it's being sent down a 1GB/s pipe typically when streamed. You're not getting all the data. It's really compressed to fit and the color space is usually set to 4:2:0 to again save bandwidth.

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  • [–] 2 points 4 months ago (2 children)

    What is your solution for content streaming. I'm ready to pop mine into a clay disk thrower.

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