Chromium browsers running at 48% of max refresh rate on Gnome with VRR
I recently rebased my KDE installation to bazzite-gnome:stable just to see how things are on the GNOME side, made a new user to avoid config mixups, and logged in. Everything seemed very nice, except that flatpak Brave and Chromium browsers (ozone platform wayland) run at at a maximum of 83fps and feel noticeably laggy on my 170hz monitor when VRR is enabled on it. I have two monitors, 1440p 170hz and 4k 60hz. When VRR off, they run 170fps. Turning VRR on or off on my second monitor makes no difference.
I have tested this on openSUSE tumbleweed and regular fedora and the same issue occurs when using GNOME (it's fine on plasma), even when using non-flatpak versions of said browsers. I don't think Bazzite itself or flatpak are the problem, but I am wondering if there is a workaround/fix for it?
7 Replies
You should never rebase between DEs.
It's in the documentation to not do. You may have conflicting configurations and it's unsupported.
My bad - I was under the impression that it was fine as long as you didn't use the same user. If I end up switching to gnome full time I will reinstall.
In any case, it hasn't caused me any issues that I am aware of, and this issue occurs on a fresh Fedora Gnome installation as well. If needed, I will test on a fresh Bazzite Gnome installation as well. Any guidance on fixing it would be appreciated!
... Hum
No idea if that actually would be safe. Just a fellow user here.
Though if you turned vrr on and have Nvidia it might be a bug it has right now instead.
But you'd have to ask others about what the bug is. I've just heard there is one with vrr with a fix in the pipeline.
I'm on an AMD GPU. The only other mention of this exact issue I have found so far is here:
https://www.reddit.com/r/gnome/comments/1jizkgc/chromium_lag_on_multimonitor_setup_after/
Guess I'll keep looking
Yeah I...don't know. Deepest apologies.
https://issues.chromium.org/issues/410071538 seems related
No worries. Thanks anyway
I think this may also be related to the way GNOME handles VRR and how Chromium reacts with that. I see similar results with lower than expected FPS when I set the Plasma VRR to "always" instead of "automatic", although it fluctuates wildly, whereas on GNOME it stays around 83fps.
Hope GNOME implements an automatic option in the future i guess