Bug 444611 - The kitty terminal is not properly blurred under a Wayland session
Summary: The kitty terminal is not properly blurred under a Wayland session
Status: RESOLVED DOWNSTREAM
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (other bugs)
Version First Reported In: 5.23.2
Platform: Arch Linux Linux
: NOR minor
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: wayland-only
Depends on:
Blocks:
 
Reported: 2021-10-29 15:25 UTC by Avraham Hollander
Modified: 2021-10-29 18:18 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:
anhollander516: Wayland+
anhollander516: Intel+
anhollander516: Mesa+

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Description Avraham Hollander 2021-10-29 15:25:15 UTC 
SUMMARY
The kitty terminal is not properly blurred under a Wayland session.

STEPS TO REPRODUCE
1. Install kitty
2. edit ~/.config/kitty.conf and set background_opacity to less than 1
3. Open kitty in a Plasma Wayland session

OBSERVED RESULT
kitty is transparent, but not blurred

EXPECTED RESULT
kitty is transparent and blurred

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.2
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.14.14-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-9750H CPU @ 2.60GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630

ADDITIONAL INFORMATION
I did submit an issue on https://github.com/kovidgoyal/kitty, but since Wayland applications have no control over compositing, this is not an issue that can be fixed on their end.
Comment 1 Vlad Zahorodnii 2021-10-29 18:18:12 UTC 
https://invent.kde.org/libraries/plasma-wayland-protocols/-/blob/master/src/protocols/blur.xml

if an application wants to have blurred background, it could use the org_kde_kwin_blur protocol.