Bug 2090807

Summary:	KDE desktop redraws weirdly when moving mouse.
Product:	[Fedora] Fedora	Reporter:	Lukas Ruzicka <lruzicka>
Component:	plasma-desktop	Assignee:	KDE SIG <kde-sig>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	awilliam, hygorhernane, jgrulich, kde-sig, me, rdieter, robatino, than
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2022-08-03 16:30:39 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2009537

Description Lukas Ruzicka 2022-05-26 15:13:20 UTC

Description of problem:

When moving mouse in the KDE desktop, parts of the display flicker while the desktop keeps redrawing. That causes situations when you want to click on something and it temporarily becomes black and you need to wait 500 - 1000 miliseconds for it to appear.

I spotted this in a freshly installed virtual machine.

Version-Release number of selected component (if applicable):
KDE 5.24.5

How reproducible:
Always

Steps to Reproduce:
1. Install latest KDE iso (20220525).
2. Try to run applications and use them.
3. You will see.

Actual results:

Flickering and incorrect redrawal of the display.

Expected results:

Stable display.

Comment 1 Lukas Ruzicka 2022-05-27 08:13:13 UTC

Created attachment 1884045 [details]
The way how the VM behaves.

Comment 2 Fedora Blocker Bugs Application 2022-05-27 12:28:58 UTC

Proposed as a Blocker for 37-beta by Fedora user lruzicka using the blocker tracking app because:

 I am not sure, but I would think that the described behaviour breaks the basic functionality of a DE, when it is difficult to use it because of flickering here and there.

Comment 3 Adam Williamson 2022-05-27 15:46:00 UTC

Is this with mesa-22.1.0-1.fc37 ? if so, probably a dupe of https://bugzilla.redhat.com/show_bug.cgi?id=2088644 . Try with any newer mesa build than that.

Comment 4 Adam Williamson 2022-07-20 16:59:40 UTC

Ping Lukas, can you check this?

Comment 5 Lukas Ruzicka 2022-08-03 08:06:56 UTC

Hello Adam,

sorry for the late reaction, but the needinfo notification seems to have fallen into the depth of the Bugzilla folder without me noticing it.
I have tried with the latest compose and I **do not** see the issue any longer, so the issue must have been addressed already.

Comment 6 Adam Williamson 2022-08-03 16:30:39 UTC

Probably was a dupe of 2088644 then. Thanks!

*** This bug has been marked as a duplicate of bug 2088644 ***