4 ms·

A possible workaround for users is to use an active HDMI adapter, e.g. a USB-C dock or DisplayPort → HDMI converter.

• geraldhh 3y ago
  are you implying that DP-HDMI cables have some active components in it that modifies the signal?
  • Uvix 3y ago
    Yes, some of them do. “DisplayPort++” ports support passive HDMI converters, while “pure” DisplayPort outputs do not.
  • oynqr 3y ago
    Yes. There is dual-mode Displayport which works with passive adapters, but I've never actually seen it and type c doesn't support it at all.
• Uvix 3y ago
  Last I checked those converters do not support HDMI 2.1 features like VRR. If the end output is HDMI 2.0 you might as well skip the middleman.
  • macNchz 3y ago
    There is extensive discussion about adapters in the bug report thread, it seems that some adapters do actually support HDMI 2.1 features, but it depends on their chipset and firmware version. I got a CableMatters one that seems to work, to the best of my ability to test without my TV having a diagnostic panel to show info about the signal it’s receiving. https://gitlab.freedesktop.org/drm/amd/-/issues/1417 https://gitlab.freedesktop.org/drm/amd/-/issues/1417
  • emersion 3y ago
    The Steam Deck dock supports this, for instance.