For three years there has been a bug report around 4K@120Hz being unavailable via HDMI 2.1 on the AMD Linux driver.

The wait continues…

  • @[email protected]
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    fedilink
    110 months ago

    My guess is it has something to do with DRM protection in the HDMI spec. I have no proof but it seems like it is always DRM that screws over open source.