https://bugs.kde.org/show_bug.cgi?id=461121
Bug ID: 461121
Summary: kScreen silently fails to enable 2nd external monitor
Classification: Plasma
Product: KScreen
Version: 5.24.7
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: b.terr...@gmail.com
Target Milestone: ---
Created attachment 153265
--> https://bugs.kde.org/attachment.cgi?id=153265&action=edit
kscreen_backend_launcher logs
SUMMARY
I have an XPS laptop with 2 externals monitor.
Since today, and after having updated some KDE packages, I cannot use 2
external monitors in plasma.
I can use one or the other, but not both at the same time.
I do not have this issue in tty, sddm3 or gnome.
STEPS TO REPRODUCE
1. Open "Display Configuration"
2. Select 1st external display and enable it
3. Click apply => works fine
4. On the dialog prompting if settings should be kept or reverted, select to
keep the settings.
5. Select 2nd external display and enable it
6. Click apply... nothings happen
OBSERVED RESULT
When clicking "Apply" in step 6, the button Apply is greyed out.
But nothing else seems to happen, the dialog to ask use if changes should be
kept or reverted is not displayed.
The 2nd display is effectively still disabled.
EXPECTED RESULT
The 2nd screen is effectively enabled and taken out of stand by.
SOFTWARE/OS VERSIONS
Kubuntu 22.04 + backport PPA
Linux: 5.15.0-48-generic
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.3
ADDITIONAL INFORMATION
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