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…

  • Flaky@iusearchlinux.fyi
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    8 months ago

    Probably a lot more hardware using HDMI than DisplayPort? Just throwing a guess, tbh.

    That being said, I might consider looking towards DisplayPort when I can get a new monitor…