https://bugs.kde.org/show_bug.cgi?id=425139
Bug ID: 425139
Summary: Enabling blur effect does not cause non-qt windows to
blur, even when they have semi-transparent elements
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-wayland
Assignee: kwin-bugs-n...@kde.org
Reporter: sk.griffi...@gmail.com
Target Milestone: ---
SUMMARY
Enabling blur effect does not cause non-qt windows to blur, even when they have
semi-transparent elements
STEPS TO REPRODUCE
1. Log in to plasma wayland session
2. Enable blur effect from System settings>Desktop Effects>blur
3. Apply a gtk theme with transparent elements such as Arc
(https://github.com/jnsh/arc-theme) or Fantasma
(https://www.gnome-look.org/p/1312446/) or custom Firefox css.
OBSERVED RESULT
The transparent regions in non-qt applications are not blurred
EXPECTED RESULT
All windows with transparent elements should be blurred
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
I am aware that this was not implemented in X, but there were workarounds to
make any window blurred. I could not find any such way in wayland, hence it is
in a way a regression. However, it is very much possible since a wayland
compositor named wayfire (https://github.com/WayfireWM/wayfire) already has a
working implementation to blur every window
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