Missing Suspend/Hybernate/Shutdown/Restart options and buttons

[Aldo Latino]

Hello everyone,
I'm an Arch Linux user with KDE, daily updated.

Some system information:
Operating System: Arch Linux
KDE Plasma Version: 6.6.3
KDE Frameworks Version: 6.24.0
Qt Version: 6.11.0
Kernel Version: 6.19.10-arch1-1 (64-bit)
Graphics Platform: Wayland
Display manager: Plasma Login Manager

A few days ago I noticed that my computer no longer enters sleep mode 
automatically. If I trigger the standby manually, it works perfectly, 
and the system resumes without any issues.

After some investigation, I noticed two things:

1) In System preferences > Energy Saving (I use KDE in Italian and don't 
know the exact English terms), Suspend and Hibernate options are missing 
from the menu "If inactive".

2) In addition, the buttons for hibernate, suspend, restart, and 
shutdown are missing in the Kickoff menu, i.e. the application launcher.

I found two workarounds for this:

1) the first is to logout from the current session and relogin: both 
problems above go away.

2) the second is to open the terminal and issue these two commands:

$ systemctl --user restart plasma-plasmashell
which makes the icons in the application launcher reappear

$ systemctl --user restart plasma-powerdevil
which makes options in the system settings reappear

Why does this happen?
Have you ever heard anything about this behavior?
Does it depend on the new Plasma Login Manager? (btw, I have uninstalled 
SDDM as explained in the Arch Wiki [1])

Thanks in advance for any information.

[1] https://wiki.archlinux.org/title/Plasma_Login_Manager

-- 
Aldo Latino
OpenPGP key: rsa4096/0x60FFD8BC4C8E611F

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