https://bugs.kde.org/show_bug.cgi?id=522565
Bug ID: 522565
Summary: When PlasmaShell is invoked, then killed, inside
Konsole, inside a nested KWin instance, painting
becomes reactive
Classification: Plasma
Product: kwin
Version First 6.7.1
Reported In:
Platform: Fedora RPMs
URL: https://youtu.be/olpJVbN3Av4
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: compositing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Flags: NVIDIA-
Created attachment 193978
--> https://bugs.kde.org/attachment.cgi?id=193978&action=edit
A Photograph Of The Display, When The Menu Bar Fails To Render
# DESCRIPTION
When PlasmaShell is invoked, then gracefully killed (when responsive), in
Konsole, in a nested KWin instance, KWin begins to behave like ReactOS /
Windows XP, for Konsole's menu bar becomes invisible, and the PlasmaShell
wallpaper ghosts. Essentially, painting each element is a reactive operation.
# STEPS TO REPRODUCE
1. Via a (hereafter, host) KWin instance, invoke `konsole -e "bash -c 'export
$(dbus-launch) && kwin_wayland plasmashell'"`.
2. When the effect described in https://bugs.kde.org/show_bug.cgi?id=521092#c0
has elapsed, invoke similar to `konsole -e 'pwsh -c "kquitapp6 plasmashell"`.
3. Move your mouse over the menu bar, and/or move the window.
# OBSERVED RESULT
- The menu bar buttons, previously invisible, become rendered.
- When the window is moved, it ghosts the background, [^1] in a reverse manner.
https://youtu.be/olpJVbN3Av4 depicts this, although the flashes that it depicts
do not actually render (evidently, KWin provides different output to OBS).
Instead, the attached screenshot demonstrates what the user observes.
# EXPECTED RESULT
None of this should occur.
# SOFTWARE/OS VERSIONS
> ~~~
> Operating System: Fedora Linux 44
> KDE Plasma Version: 6.7.1
> KDE Frameworks Version: 6.27.0
> Qt Version: 6.11.1
> Kernel Version: 7.0.14-201.fc44.x86_64 (64-bit)
> Graphics Platform: Wayland
> Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
> Memory: 32 GiB of RAM (30.4 GiB usable)
> Graphics Processor 1: AMD Radeon RX 5700
> Graphics Processor 2: AMD Ryzen 5 7600X 6-Core Processor
> Manufacturer: ASRock
> Product Name: X670E Taichi
> ~~~
# ADDITIONAL INFORMATION
Discovered whilst creating a screencast for
https://framagit.org/tractor/carburetor/-/work_items/95, so I wasn't searching
for bugs.
[^1]:
https://en.wikipedia.org/w/index.php?title=Talk%3AFeatures_new_to_Windows_XP&oldid=1362265621#%E2%80%9CWindow_ghosting%E2%80%9D_is_a_problem,_rather_than_the_name_of_a_solution,_yet_is_purported_to_be_the_latter.:~:text=%E2%80%9Cwindow%20ghosting%E2%80%9D%20refers%20to%20the%20problem
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