Bug 444024

Summary:	[wayland] - dock leaves blurry area after hiding
Product:	[Unmaintained] lattedock	Reporter:	Lukas Kucharczyk <lukas>
Component:	application	Assignee:	Michail Vourlakos <mvourlakos>
Status:	CONFIRMED ---
Severity:	normal	CC:	amstuff.git, kde
Priority:	NOR
Version First Reported In:	git (master)
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Lukas Kucharczyk 2021-10-19 08:49:45 UTC

SUMMARY

I have the dock on bottom set to auto-hide and dodge maximized.
Sometimes when the dock hides, it leaves a blurry area instead
of disappearing correctly.
This area covers 100% of the width of the screen despite the dock
not being 100% wide.
It happens quite often but I have not been able to reproduce
it reliably.


STEPS TO REPRODUCE
1. Scroll to bottom edge to make dock appear.
2. Move the cursor out of the dock area.
3. Blurry area remains.

OBSERVED RESULT
Blurry area covers the bottom part of the screen after
the dock is supposed to be hidden.

EXPECTED RESULT
No artifacts remain after the dock is hidden.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: N/A 5.23.0
(available in About System)
KDE Plasma Version: 5.23.0
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Kernel version 5.14.12-arch1-1 (64-bit)

This bug is not new, it has been happening for several weeks if not months.

Comment 1 Michail Vourlakos 2021-10-19 17:14:17 UTC

I dont use wayland but when plasma 5.23 reaches my system then I will have a small look.

Comment 2 Lukas Kucharczyk 2021-10-20 11:12:19 UTC

I have encountered this bug in 5.22 so I doubt it has any connection to it.

Comment 3 amstuff 2022-02-09 19:27:46 UTC

This is still an issue with the current version (10.8).
It happens very reliably for me, when background blur is enabled and latte is setup to hide from the active window. When I maximize a window, the dock disappears, but the blur effect stays in the front.
Until very recently it happened for X11 also (there just occasionally instead of always), however that seems to be fixed now.

Comment 4 Michail Vourlakos 2022-07-13 10:58:42 UTC

happens in my system also but I havent found what triggers it... There is a big chance to big kwin upstream issue but needs further investigation...