[kde] [Bug 475255] New: Selecting a power profile doesn't work at all, be it through the system tray, or through Power Management in System Settings.

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=475255

            Bug ID: 475255
           Summary: Selecting a power profile doesn't work at all, be it
                    through the system tray, or through Power Management
                    in System Settings.
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: dfodre at gmail.com
  Target Milestone: ---

SUMMARY
***
I have a Zenbook UM425QA (with a Ryzen 7 5800H), and selecting a power profile
does absolutely nothing. The option has recently appeared in the system tray,
but it's hard stuck on Balanced. The slider snaps back to Balanced if I try to
drag it to Performance or Power Saver. However, the setting still applies
according to `powerprofilesctl`, but you can't set it back to Balanced, because
the slider says that the active profile is Balanced (even though it's not).

Going into the Power Management settings, trying to set power profiles based on
charging status works, but isn't represented by the slider. It's still stuck on
Balanced.
***


STEPS TO REPRODUCE
1. Go to Battery and Brightness on the system tray
2. Try to drag the slider to Power Saver (or Performance)
3. Check with `powerprofilesctl` if it works
4. Try setting the power profile to Balanced
5. Check with `powerprofilesctl` if it applies
4. Set power profiles for AC and battery power
5. Check with `powerprofilesctl` if the correct profile applies on AC and
battery power respectively.

OBSERVED RESULT
The slider instantly snaps back to Balanced every time I try to move it in
either direction, but the profile chosen does show as active if checked with
`powerprofilesctl`. Setting it back to Balanced via the slider doesn't work.
You'll be stuck either with Power Saver or Performance.
In addition, unplugging or plugging in the laptop does set it to the profile
chosen in Power Management, but it isn't represented correctly in system tray.
This is a way to go back to Balanced mode, but it's finicky.

EXPECTED RESULT
The slider should stay on the active setting that is reported by
`powerprofilesctl`.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 38 (KDE Spin)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.109.0
Qt Version: 5.15.10

ADDITIONAL INFORMATION
I have tried if selecting a power profile works on GNOME (by using Fedora
Workstation), and it does.

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