Bug 461140 - Black box on the desktop during login
Summary: Black box on the desktop during login
Status: REPORTED
Alias: None
Product: kwin
Classification: Plasma
Component: general (other bugs)
Version First Reported In: 5.25.5
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-10-29 01:25 UTC by Alberto Salvia Novella
Modified: 2022-11-01 15:20 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Screenshot.png (456.81 KB, image/png)
2022-10-29 01:25 UTC, Alberto Salvia Novella 		Details
xprop.log (1.09 KB, text/x-log)
2022-11-01 15:16 UTC, Alberto Salvia Novella 		Details
xprop-screenshot.png (945.69 KB, image/png)
2022-11-01 15:16 UTC, Alberto Salvia Novella 		Details
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Description Alberto Salvia Novella 2022-10-29 01:25:45 UTC 
Created attachment 153284 [details]
Screenshot.png

Just after login I see a black box on the Plasma desktop. Till I open any window that covers it, then the box disappears. It also happens on the live USB.

Operating System: Manjaro Linux
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Kernel Version: 6.0.2-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 4 × AMD A10-8700P Radeon R6, 10 Compute Cores 4C+6G
Memory: 15,1 GiB of RAM
Graphics Processor: AMD Radeon R6 Graphics
Manufacturer: TOSHIBA
Product Name: SATELLITE L50D-C
System Version: PSKXJE-00600KCE
Comment 1 Bug Janitor Service 2022-10-29 01:33:51 UTC 
Thank you for the bug report!

Please note that Plasma 5.25.5 is not supported for much longer by KDE; supported versions are 5.24, and 5.26 or newer.

If at all possible please upgrade to a supported version and verify that the bug is still happening there.

If you're unsure how to do this, contact your distributor about it.
Comment 2 Nate Graham 2022-11-01 15:01:13 UTC 
Can you open a terminal window, run `xprop`, click on the black area, and paste the output in the terminal window into a comment here?
Comment 3 Alberto Salvia Novella 2022-11-01 15:16:09 UTC 
Created attachment 153378 [details]
xprop.log
Comment 4 Alberto Salvia Novella 2022-11-01 15:16:45 UTC 
Created attachment 153379 [details]
xprop-screenshot.png
Comment 5 Alberto Salvia Novella 2022-11-01 15:18:56 UTC 
The box belongs to the desktop itself.

Maybe this is due to the frame-rate change that takes place between SDDM and the user session.
Comment 6 Nate Graham 2022-11-01 15:20:27 UTC 
Yeah, that or it's a graphical glitch. Either way, it would be a KWin issue; moving there.