https://bugs.kde.org/show_bug.cgi?id=466191
Bug ID: 466191
Summary: A few minutes after the computer is active in a KDE
5.27 session with Linux Kernel 6.2 on Manjaro, the
power management settings stop working
Classification: Plasma
Product: Powerdevil
Version: 5.27.0
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: rondo...@gmail.com
CC: m...@ratijas.tk
Target Milestone: ---
Created attachment 156566
--> https://bugs.kde.org/attachment.cgi?id=156566&action=edit
Screenshot of Power Management configuration error
SUMMARY
A few minutes after the computer is active in a KDE 5.27 session with Linux
Kernel 6.2 on Manjaro, the power management settings stop working.
STEPS TO REPRODUCE
1- Get into KDE 5.27 with Linux Kernel 6.2 in Manjaro.
2- Go to System Settings --> Power Management, it show all options correctly.
3- Now wait a few minutes with the computer on (5 or 10 minutes).
4- Go to System Settings --> Power Management, it shows the following error
attached in the screenshot:
"Power Management configuration module could not be loaded.
The Power Management Service appears not to be running."
OBSERVED RESULT
As I just indicated above, it shows an error message indicating that the Power
Management Service is not running, and indeed the computer's automatic sleep
mode no longer works.
And now if I run the following line in a Konsole:
ps -e | grep upower
I get the following result:
550? 00:00:00 upowerd
Which I don't know if it actually indicates if the daemon is running or not.
If I then log out of the KDE session and log back in, the power management
settings work again until, after a few minutes, they stop working again.
EXPECTED RESULT
Of course, the power management settings should work fine, just like they do
with Linux Kernel 6.1.12, and not stop working after a few minutes after the
computer is turned on.
I want to point out that it doesn't seem like just a KDE problem, since KDE
5.27 with Linux Kernel 6.1.12 works perfectly, but it seems like a conjunction
of KDE with the new Linux Kernel 6.2.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro KDE with Linux Kernel 6.2
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
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