Bug 450595

Summary:	File list rendering glitches when scrolling / hovering
Product:	[Frameworks and Libraries] frameworks-kio	Reporter:	Bernie Innocenti <bernie>
Component:	Open/save dialogs	Assignee:	KIO Bugs <kio-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	kdelibs-bugs, nate, pallaswept
Priority:	NOR
Version:	5.91.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	file dialog with rendering issues

Description Bernie Innocenti 2022-02-20 01:25:40 UTC

SUMMARY

Some file dialogs (e.g. systemsettings > Connections > Import VPN, but *not* konsole > File > Save Output As...) have rendering glitches while scrolling the file list or hovering with the mouse.

Happens on 2 different machines with different distros (Fedora 36 vs Arch Linux) and different GPUs (Intel vs AMD).
Both use Breeze Dark and have similar style configuration.

STEPS TO REPRODUCE
1. Open the connections kcm (either from SystemSettings or from the panel applet
2. Click Add New Connection
3. Click "Import VPN connection..." at the bottom
4. To trigger the bug, scroll up and down, hover on the list, go to a directory with many files

OBSERVED RESULT
See attached screenshot

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2 (qt5-qtbase-5.15.2-33.fc36.x86_64)

Comment 1 Bernie Innocenti 2022-02-20 01:26:22 UTC

Created attachment 146956 [details]
file dialog with rendering issues

Comment 2 pallaswept 2024-01-17 03:55:10 UTC

+1

I hadn't noticed that konsole's 'Save output as...' was an exception until I read this bug report, so I tried it out and ...hey wow it works here. Pretty sure we're looking at the same bug.

Versions here:
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.12

Comment 3 pallaswept 2024-01-17 05:30:51 UTC

I noticed issue 445196 when searching for mine, and while that description of the bug does not match our bug, the fix for that bug DOES fix this one.

The true fix is "don't use the gstreamer phonon backend at all", to paraphrase the KDE devs/maintainers, and to that effect, I've filed for its deletion from OpenSUSE (which installs it by default) and removed it from my machine and fixed this issue.

*** This bug has been marked as a duplicate of bug 445196 ***