#Unable to Run 4K 144hz on Cinnamon Mint using X11, works when using wayland experimental.

20 messages · Page 1 of 1 (latest)

timber crest
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I have tested like 5 cables, running mint 22.1. The monitor is a viewsonic xg320u. My gpu is a 6800xt.

timber crest
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Bump

eager nest
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Is that over HDMI or DP? Because if HDMI, that could also be some stupid protocol limitation specific to AMD that still awaits resolving. For what it's worth, I cannot get my 180Hz display to go above 144Hz in X11, only in Wayland.

timber crest
eager nest
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That might be a hard limit in X11. If you need Wayland, Cinnamon only has experimental support. It is bound to improve with 22.2, which is coming out in a few days as a beta.

timber crest
eager nest
# timber crest Ooh, how is the current wayland support in general?

A bit rough yet. I tried it a while ago, and while Radeons generally work alright with it, I had trouble getting dark mode across applications consistently, scaling was an issue for non-GTK applications, and some old games derped.
The most annoying current limitation is that you cannot change keyboard layouts yet. The option is not there, so you are stuck with the US layout. This has been explicitly mentioned to come with 22.2. The beta should be out very soon, and once the final drops, an upgrade path will open so you can just tell Update Manager to upgrade.

stable python
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Are the cables you tried certified for the speeds needed? I have had weird things happen at 4k 119.98Hz too, and went through several cables. I finally purchased a 8k60Hz certified DP-HDMI cable (my screen doesn't have DP input) and the problems disappeared...

eager nest
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Didn't OP say it worked on Windows? That usually means the cables are fine. Unless it's that weird HDMI mode that AMD has not yet implemented on Linux.

timber crest
timber crest
eager nest
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Yeah, same difference. Proved that it worked.
I have looked into a hundred similar threads, forgive me for mixing them up.

timber crest
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Its fine, totally believe that

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Ill likely be moving to kubuntu or similar once I care enough to spend the time doing it

eager nest
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Be aware that Kubuntu is always on a rather old package base and gets new features literally years after the rolling distros. Doesn't mean that it's bad. But for instance, HDR is now coming to KDE, but Kubuntu won't have that for another year.

timber crest
eager nest
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Which Plasma version?

timber crest
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My other option would be like kde neon because I wanna stick with a debian or ubuntu base

timber crest
eager nest
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Then I guess this is not LTS-based. Alright, then enjoy.