https://bugs.kde.org/show_bug.cgi?id=438155
Bug ID: 438155
Summary: Monitor alignment 1 pixel off after re-enabling
secondary monitor
Product: plasmashell
Version: 5.21.5
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: hoffmann_lor...@protonmail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 139032
--> https://bugs.kde.org/attachment.cgi?id=139032&action=edit
Commented and edited screenshot to show the bug
SUMMARY
I have 2 monitors connected, primary on the left and secondary on the right. I
regularly turn the secondary monitor off to save power.
After re-enabling it, the alignment of the monitors is 1 pixel off, so that the
most right pixel row of the left monitor is displayed on the right monitor.
In other words, if I have a maximized window on the left monitor, the right
pixel border of that window is displayed on the right monitor instead of the
left.
The attached screenshot may explain this bug a little better
STEPS TO REPRODUCE
1. Connect two monitors, primary on the left and secondary on the right.
2. Disable the right monitor and immediately re-enable it.
OBSERVED RESULT
The monitors are aligned as described in the summary.
EXPECTED RESULT
The monitors should be aligned as before.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.21.5, Manjaro
(available in About System)
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
There is also another bug after re-enabling a monitor: the wrong refresh rate
is selected (50 Hz instead of 60 Hz). I will open another bug report for this.
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