[Question] Is Adaptive Sync possible over HDMI, or is it a DisplayPort thing only? about labwc

[johanmalm]

@Ph42oN - any thoughts?

[Ph42oN]

It works with HDMI too on my MSI G273QFW, i think it is older than 2.1 as refresh rate is limited to 144hz with HDMI. GPU is RX 6800, i don't really know much about intel GPU drivers.

Have you checked if its detected as vrr_capable on xrandr? (Must run on xorg, it will not show this on xwayland)

[vanfanel]

@Ph42oN is there antything I can do to test that on Wayland, please? I have no GNU/Linux sistems with X11 anymore, they are all self-configured with only Wayland libs etc

[Consolatis]

drm_info might provide further clues but I am not sure if its just giving the current state or is also showing VRR capability in general.

[droc12345]

For full 2.1, the adapter needs to support it, the monitor needs to support it and the cable needs to support it. If the cable doesn't pass the whole 2.1 bandwidth, then you won't get 2.1.

I don't know if that's your problem but an area to also check.
And on my monitor, I can do something like select the version of display port it uses.
You might check monitor settings.