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DisplayPort: A Better Video Interface (hackaday.com)
submitted 1 year ago by [M] to c/technology@piefed.social
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Over the years, we’ve seen a good number of interfaces used for computer monitors, TVs, LCD panels and other all-things-display purposes. We’ve lived through VGA and the large variety of analog interfaces that preceded it, then DVI, HDMI, and at some point, we’ve started getting devices with DisplayPort support. So you might think it’s more of the same. However, I’d like to tell you that you probably should pay more attention to DisplayPort – it’s an interface powerful in a way that we haven’t seen before.

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[–] 2 points 1 year ago (3 children)

Does anyone know of some affordable 4K@120Hz TVs that ship with DisplayPort interfaces, or any long fiber optic DisplayPort cables supporting the same resolution frame rate and bit depth as the HDMI 2.1 fiber optic cables on the market? That's one thing that's been holding me back from DisplayPort adoption.

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  • [–] 2 points 1 year ago (2 children)

    It's difficult to have. The members of HDMI Forum are almost the TV manufacturers and the members of VESA (the maintainer of DisplayPort) are PC and GPU munafacturers. So TV almost uses HDMI and monitor almost uses DisplayPort.

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  • [–] 1 point 1 year ago (1 child)

    This kind of splintering is really unfortunate. Would be nice to have a universal AV interface for consumer hardware. I'd also like to see one that supports bi-directional communication, like for forwarding human interfaces connected to TVs, like wireless game controllers, or programmatic control over internal settings like audio volume, brightness, contrast, motion smoothing, etc. I suppose displayport over thunderbolt plus embedded USB hubs in computer monitors gets close, but the display settings controllers usually require proprietary drivers and are vendor specific.

    I know both HDMI and Displayport enable remote control for basic features like turning the device on or off from sleep, but very few PCs or GPUs ship with HDMI-CEC. I've only seen a few mini PCS or single board computers ship with that.

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  • [–] 2 points 1 year ago

    I suppose displayport over thunderbolt plus embedded USB hubs in computer monitors gets close, but the display settings controllers usually require proprietary drivers and are vendor specific.

    DisplayPort have DDC to control display settings. But I don't know how much settings was standardized and implemented by vendor. But at least, the backlight was implement by most vendors, many users use it.

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