https://bugs.kde.org/show_bug.cgi?id=470184
Bug ID: 470184
Summary: Dual-monitor PC will not refresh secondary desktop
after switching HDMI port in X11
Classification: Plasma
Product: Active Window Control
Version: unspecified
Platform: Slackware
OS: Linux
Status: REPORTED
Keywords: wayland
Severity: normal
Priority: NOR
Component: General
Assignee: zrenf...@gmail.com
Reporter: ste...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
***
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***
STEPS TO REPRODUCE
1. Switching secondary monitor out temporarily from a port-replicator switch
while keeping primary desktop active.
2. Switch back in secondary monitor/desktop
3.
OBSERVED RESULT
Wallpaper and Desktop menu are disabled (inactive). Right-click on secondary
desktop does not invoke menu. The wallpaper that was set will disappear and
turn to a black background.
EXPECTED RESULT
Wallpaper and Desktop menu should become active after a second or two of
refresh time. This errant behavior does not happen on other Desktops such as
XFCE and Plasma Full Wayland mode - as well as Windows OS.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Slackware64 (Current)/23.04 & 5.105
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9_20230412
ADDITIONAL INFORMATION
As mentioned this is not an issue in Plasma5 full Wayland mode nor XFCE/X11.
Secondary Desktop wallpaper and menu will resume/refresh after a second or two
once monitor is reconnected through HDMI port replicator switch in those DE's.
I have 4 computers that share the secondary monitor with a common mouse and
keyboard. The brand of switch is xtremPro and is a model 4x1 USB HDMI KVM
Switch 4K2K. If I use the xrandr binary in a script to temporarily switch the
secondary monitor resolution I can get the secondary desktop to refresh. Below
is the script:
#!/bin/bash
xrandr --output DP-2-2 --mode 1600x900
xrandr --output DP-2-2 --mode 1920x1080
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