https://bugs.kde.org/show_bug.cgi?id=467395
Bug ID: 467395
Summary: A mark appear on the primary monitor after switching
between 2 screens and 1 screen several times.
Classification: Plasma
Product: kwin
Version: git-stable-Plasma/5.27
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: i...@semyonov.xyz
Target Milestone: ---
Created attachment 157301
--> https://bugs.kde.org/attachment.cgi?id=157301&action=edit
image with the issue visible
STEPS TO REPRODUCE
1. Have 2 monitors attached
2. disconnect primary monitor
3. reconnect primary monitor
4. using 'xrandr --output ${secondary} --off' removes the mark. Re-enabling
the secondary screen with xrandr re draws the mark in the same place on the
primary screen.
OBSERVED RESULT
An approximately diagonal pink/purple mark at about 1400,600 (x, y origin at
top left). The mark is about 2 cm long and about 2 mm wide on my 32 inch
1920x1080 monitor.
EXPECTED RESULT
No mark.
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.13
KDE Plasma Version: 5.27.2
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 5.15.94-gentoo (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: X570 AORUS MASTER
System Version: -CF
ADDITIONAL INFORMATION
I use a KVM. Hence my primary monitor is frequently disconnected and
reconnected. This happend after some time going back and forth between my
machines.
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