Version:           4.5 (using KDE 4.5.0) 
OS:                Linux

Hi, I have this problem, it started when I upgraded to KDE4.5 (which is fantastic), I had no problems with Battery plasmoid (plasmoid, the default-one in panel, may be whole power devil) but after this upgrade, it doesn't recognise my AC/adapter. The percentage is raising but he still thinks AC is not connected to laptop, so doesn't change from "powersave" to "Performance". It just recognise the battery is charging or discharging but nothing else about (dis)connected AC.

"cat /proc/acpi/ac_adapter/ADP0..." shows the properly and right values, on-line when plugged, offline when unplugged.

Also when I start KDE from GDM (you know, login in GDM to KDE:), the battery applet works properly and recognise it.

The kernel I am using is OK I think because I used it before upgrade too.
Also other kernels now don't help so I think it isn't kernel-related issue.

Thank you very much for any kind of help or advice

Reproducible: Always

Steps to Reproduce:
log-in, unplug AC adapter -> battery plasmoid shows AC is still connected. Same situation when starting without AC, then plugin -> battery plasmoid shows it is not connected-

Actual Results:  
The power schemes doesn't change...

Expected Results:  
Recognising the AC/Adapter change