[kde] [Bug 464409] New: File selection dialog (KFileDialog?) list view shows visual glitches when enabling preview panel

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=464409

            Bug ID: 464409
           Summary: File selection dialog (KFileDialog?) list view shows
                    visual glitches when enabling preview panel
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: andrea.ippo at gmail.com
  Target Milestone: ---

SUMMARY
I'm reproducing this with Firefox 108, but this issue has been annoying me for
a while, so for sure it's reproducible on previous versions of both Firefox and
KDE.


STEPS TO REPRODUCE
1. Open Firefox
2. Open the Open file dialog (Ctrl + O)
3. Make sure it is using the KDE file picker instead of the GTK one
4. Disable the preview panel, then go to a folder with several files and hover
your mouse over them - you shouldn't see any visual glitches
5. now enable the preview panel and repeat, you will see visual artifacts (line
only half highlighted, contents not refreshing under cursor, etc). Artifacts
can be so severe that you actually don't know anymore which file is selected,
if it weren't for the text field just below.

I have recorded this issue with OBS. When the glitch happens, at some point I
stop moving the mouse and just try to navigate with arrow up/down. That's why
you see the file names changing, but there is no visual hint at all about which
file is currently selected in the list view.

Video is here (Google Photos still processing it to make it full-res):
https://photos.app.goo.gl/w6g1aunZzt2spm1r5


Operating System: openSUSE Tumbleweed 20230115
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.8
Kernel Version: 6.1.4-1-default (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics
Manufacturer: Dell Inc.
Product Name: XPS 13 9305

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