Here is another observation:
if I unplug the power-cord, it is immediately marked in the display with a dot ("Akkubetrieb").
Only if I call "acpi -b" also the message window "now running on battery" is shown together with an update of the residual time.
So a different behavior of the monitor screen and the applet icon.
I greatly appreciate any help for further debugging - I am at my whit's end.
Here is another observation:
if I unplug the power-cord, it is immediately marked in the display with a dot ("Akkubetrieb").
Only if I call "acpi -b" also the message window "now running on battery" is shown together with an update of the residual time.
So a different behavior of the monitor screen and the applet icon.
I greatly appreciate any help for further debugging - I am at my whit's end.