Bug 459908

Summary:	On Wayland, Games will disconnect when not in view
Product:	[Plasma] kwin	Reporter:	deresiant
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	nate, xaver.hugl
Priority:	NOR
Version First Reported In:	5.25.5
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description deresiant 2022-10-02 05:28:11 UTC

SUMMARY
On Wayland, on games, when put into the background e.g. minimised or put onto a different virtual desktop (but still open) the game will often disconnect. 

I'm not sure if this is the cause but: Using glxgears as an example, if putting the glxgears window on a different virtual desktop,  it drops to 1FPS and minimising the glxgears window, it drops to around 58FPS


STEPS TO REPRODUCE
1. run `glxgears` in terminal
2. see that it runs at full fps when in view
3. move it to a different virtual desktop
4. see that it runs at 1FPS
5. minimize the glxgears window
6. see that it runs at around 58FPS
OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 5.19.9-269-tkg-pds (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 550 / 550 Series

Comment 1 deresiant 2022-10-02 05:30:15 UTC

I'm not sure what the expected result is, it could be irrelevent to games disconnecting when not in view, I tested Warframe and Genshin Impact in which both would start to reconnect me (and disconnect me from what i was doing) after the game window was put back on my screen.

Comment 2 Zamundaaa 2022-10-11 13:44:02 UTC

Xwayland throttles applications once they're not shown by the compositor anymore, which is correct behavior - if a game doesn't handle that well, there's nothing good we can do about that.