https://bugs.kde.org/show_bug.cgi?id=460560
Bug ID: 460560
Summary: Primary monitor to becomes disabled when secondary
monitor is plugged in
Classification: Plasma
Product: KScreen
Version: 5.26.0
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: chriswhitlock...@gmail.com
Target Milestone: ---
SUMMARY
***
I have a dual monitor setup using an xorg.conf that has never been a problem,
but after an update, my primary monitor does not work, and KDE ignores my
/etc/X11/xorg.conf and everything in /etc/X11/xorg.conf.d/. The primary monitor
is listed as "Disabled" under System Settings > Hardware > Display and Monitor
> Display Configuration and, after login, only shows a black screen for about
half a second before going to sleep, while the secondary monitor becomes the
only working monitor. Enabling the monitor and hitting "Apply" just makes it
show a black screen briefly again before going back to sleep. The same happens
when using the nvidia-settings GUI to try to do the same thing, or running
xrandr. If I only have one monitor plugged in, then either works fine
***
STEPS TO REPRODUCE
1. Enable KScreen 2 under System Settings > Workspace > Startup and Shutdown >
Background Services
2.
3.
OBSERVED RESULT
Only my secondary monitor works, while the primary one becomes "Disabled", only
shows a black screen, and goes to sleep a second or two after login.
EXPECTED RESULT
Dual monitor setup functioning normally with both screens working and aligned
properly.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
Distro: Arch
Kernel: 5.15.74-1-lts
GPU: Nvidia RTX 2060 Super
GPU Drivers: nvidia-lts 1:520.56.06-4
Monitor 1: Asus VG27AQ 2560x1440 165hz
Monitor 2: Dell ST2410 1920x1080 60hz
Display Manager: sddm 0.19.0-8
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