https://bugs.kde.org/show_bug.cgi?id=475612
Bug ID: 475612
Summary: Inter-Monitor Pixel Bleed in KDE Multi-Monitor Setup
Classification: Plasma
Product: kwin
Version: 5.27.8
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: zackme...@outlook.com
Target Milestone: ---
Created attachment 162300
--> https://bugs.kde.org/attachment.cgi?id=162300&action=edit
The line can be seen above the text of MONITOR 1 and MONITOR 2
SUMMARY
***
In a dual or multi-monitor setup in KDE, a 1-pixel line from an application
window on one monitor bleeds onto the edge of the adjacent monitor. This occurs
when an application window is stuck to the side of a monitor that is adjacent
to another monitor. For example, when an application window is open on Monitor
1 and is stuck to the right side (which is adjacent to Monitor 2), a 1-pixel
line from the application window can be seen on the left edge of Monitor 2. The
same issue occurs in reverse when an application window is stuck to the left
side of Monitor 2.
The 1-pixel seems to be from a frame highlighting the entire window, shouldn't
this frame be considered part of the window?
***
STEPS TO REPRODUCE
1.Connect two or more monitors and configure them in KDE Display Settings such
that one monitor is adjacent to another (e.g., Monitor 2 is on the right side
of Monitor 1).
2.Open any application on Monitor 1 and stick it to the right side of the
monitor.
3.Observe a 1-pixel line from the application window on the left edge of
Monitor 2.
4.Repeat the steps with the application window on the left side of Monitor 2
and observe the 1-pixel line on the right edge of Monitor 1.
OBSERVED RESULT
Observe a 1-pixel line from the application window on the left edge of Monitor
2
EXPECTED RESULT
No 1-pixel lines should exist outside the monitor on which the app is sticking
to its edge
SOFTWARE/OS VERSIONS
OS Name: ArchLinux
Linux/KDE Plasma: 5.27.8
(available in About System)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.11
ADDITIONAL INFORMATION
Graphics Platform: Wayland
Graphics Driver: Mesa 23.2.1-2
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