Bug 459110

Summary:	Cursor Rendering is broken on Wayland Plasma sessions on Radeon Drivers
Product:	[Plasma] kwin	Reporter:	simeonlps
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	5.25.5
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	an image showing the previously explained cursor artifacts

Description simeonlps 2022-09-14 15:45:34 UTC

Created attachment 152053 [details]
an image showing the previously explained cursor artifacts

SUMMARY
***
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***


STEPS TO REPRODUCE
1. Get a device using the legacy AMD Radeon drivers (Mobility Radeon HD 4530/4570/545v...etc)
2. Run KDE Plasma 5.25.5
3. Select a Plasma Wayland session from your display manager
4. Observe the broken cursor

OBSERVED RESULT
The Cursor becomes incredibly big compared to what it's size is supposed to be, and has a line pattern across it. Ocassionally, a black box remeniscent of the same line patterns appear around the cursor

EXPECTED RESULT
The Cursor shows up as expected, with the correct size and without artifacts

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
  KDE Plasma Version: 5.25.5
  KDE Frameworks Version: 5.97.0
  Qt Version: 5.15.5
  Kernel Version: 5.19.8-200.fc36.x86_64 (64-bit)
  Graphics Platform: Wayland
  Graphics Processor: AMD RV710
  KDE Plasma Version: 
  KDE Frameworks Version: 

ADDITIONAL INFORMATION
I have not encountered a similar issue on Plasma 5.24 before updating a my freshly installed Fedora system, nor did I observe this on Swaywm or GNOME, on both my ThinkPad (the device with the issue) and my Desktop with a Nvidia GPU

I have attached an image to further clarify the issue I am having

Comment 1 Nate Graham 2022-09-14 16:48:32 UTC

Likely a graphics drivers issue, similar to https://gitlab.freedesktop.org/drm/amd/-/issues/1513 or even the same thing. Can you file a bug report there? Thanks!