Bug 465822

Summary:	5.27: Desktop context menu flickers, disappears, and other graphical glitches
Product:	[Plasma] plasmashell	Reporter:	John <jd.primary>
Component:	generic-multiscreen	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	aleixpol, kde, notmart
Priority:	NOR	Keywords:	wayland-only
Version First Reported In:	5.27.0
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Display setup screenshot

Description John 2023-02-16 08:57:18 UTC

Created attachment 156290 [details]
Display setup screenshot

SUMMARY
***
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***

Only my second bug report please let me know if I am missing any info.

STEPS TO REPRODUCE
1. Have 2 monitors, external monitor is 1920x1080 no scaling native monitor is 2256x1504 @ 150% scaling
2. Right click on background
3. Navigate to submenu

OBSERVED RESULT
After navigating to sub-menu the main context menu disappears and starts experiencing flickering and other graphical issues (video attached). I had a similar issue on 5.26 where parts of the menu would disappear but the flickering is new.

EXPECTED RESULT
A stable context menu with no graphical glitches.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: OpenSUSE Tumbleweed 20230213 / Plasma 5.27.0
(available in About System)
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel: 6.1.10-1
Graphics Platform: Wayland
Display Information: 1920x1080 no scaling 120Hz & 2256x1504 @ 150% scaling 60Hz (will attach picture)
GPU: Intel 12th gen iGPU - i915 drivers.

ADDITIONAL INFORMATION

Glitching only happens on scaled monitor.

Link to video w/ glitching https://youtu.be/ijreBrRzkyA

Comment 1 David Edmundson 2023-02-16 09:32:04 UTC

Please see https://bugreports.qt.io/browse/QTBUG-93380

Hopefully should all be resolved by Plasma 6.

Comment 2 John 2023-02-16 13:32:11 UTC

(In reply to David Edmundson from comment #1)
> Please see https://bugreports.qt.io/browse/QTBUG-93380
> 
> Hopefully should all be resolved by Plasma 6.

Sounds good. Out of curiosity, do you know why it's flashing/strobing more on 5.27 than on 5.26? Is there something that's refreshing the desktop or menu?