G-sync and screen flickers

Ephebopus

Hello and apologies if this has been answered before. I tried searching for the issue but didn't find it precisely.

I'm on Budgie , 5.11.9-176.current , and have an rtx 2060 graphics card and am using the proprietary nvidia drivers. If I do sudo nvidia-settings and enable G-sync under X Server Display Config - Advanced , and then under the OpenGL settings enable the G-sync indicator, I get 'G-Sync' in green when running games. However the desktop also flickers. If I enable both or the left Composition Pipeline options under Advanced (the same place where G-sync is enabled) the desktop flickers disappear but the indicator says no game runs with G-sync anymore.

Has anyone a flickerfree desktop and G-sync in games in Solus? : )

My monitor is a Q32G1WG4 and G-sync works without flickers in Windows, which is a bit moot because Ephebopus flickers in Windows.

Ephebopus

Well I thought I'd tell what worked for me in the end. Have read that compositing cannot be turned off in Gnome 3 or Budgie. https://forums.developer.nvidia.com/t/apparent-refresh-rate-lower-than-nvidia-settings-using-375-66-11-and-gtx1070/51836 indicated the nvidia proprietary driver doesn't catch the correct libmutter. (There's "..7" in the current Solus Budgie and Gnome). That proposed command to run at login kills G-sync full stop on my system. The two Composition Pipeline options decrease the framerate somewhat and cause sideways scrolling to be even choppier than with no forced composition pipeline (or g-sync).

In Mate the compositor can be Marco (compositing off) and Marco (adaptive) and Compiz. Both Marcos do not cause desktop brightness flickering with G-sync also enabled. The compositing off one seemed to disable translucent windows though it allowed G-sync to run in games. The adaptive one prevented G-sync from running but there was no desktop flickers either. Compiz...seemed fine for three seconds then threw a flickering-fit. Use Marco (adaptive) and kill it when starting each game? Saw no great guide for that and wasn't too keen on the Mate UI.

Saw that kwin (just like Gnome and Budgie) is supposed to turn compositing off in full screen games, but that it is a choice in kwin. It also has choices for compositors, so does one of the three not cause brightess flickering at the desktop? Yes! It appears so- Xrenderer . (It appears to have been the best choice for Nvidia cards in Plasma for 6+ yrs, well, such was indicated in a couple of forum comments anyway) The login screen flickers as do loading screens in games but that's OK, the main thing is that the desktop appears flicker-free and G-sync is operational in games : ) I will learn to like the Plasma aesthetic.