Bug 497329

Summary:	Vsync uncertainty between 60 and 144 hz
Product:	[Plasma] kwin	Reporter:	Angel <a.cvetkov9ml>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	CLOSED NOT A BUG
Severity:	normal	CC:	xaver.hugl
Priority:	NOR
Version First Reported In:	6.2.4
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Angel 2024-12-11 15:16:13 UTC

When I use my second screen I have this weird issue in games where the fps will be around 100 fps and will fluctuate. But its not my hardware that is not capable of running them, glxgears and eglgears both have this issue. After stopping my second screen the vsync works as normal and I am getting around 144 FPS as I should. I also tested weston and with both screens on the issue there doesn't exist.

Comment 1 Zamundaaa 2024-12-11 18:10:17 UTC

Do your screens perhaps overlap in the display settings (even if only ever so slightly)?

Comment 2 Angel 2024-12-12 11:35:40 UTC

(In reply to Zamundaaa from comment #1)
> Do your screens perhaps overlap in the display settings (even if only ever
> so slightly)?

I just checked they aren't. But I also found out that running this gives me this output.
❯ journalctl -b 0 --grep "renderer for"
-- No entries --

So I think that this is some sort of issue on my part rather than a bug. If someone else has this issue without any other issues, they can reopen this.