My laptop hung when external power is unplug. I guess something went wrong with my wireless device, so i investigate system log for information. But unfortunately, it didnt tell anything about the case. What next do i need to do now? Im new to OpenSUSE.
Check your settings in the power manager
What is it set to do when switch to battery
It might be an idea to tell is if you are using kde or gnome
You could for example have on battery with the same settings as when plugged in, which may prevent this issue happening
About the power management setting for battery. Originally it is set to: powersave. But, even if i switch it to Performance (same mode as when on power plugged), it doesn’t helps at all. By the way, i used KDE as primary desktop manager. Any ideas?
after a whole day long trying to figure out what was wrong, i found that the problem happens with pm-utils package (pm-utils-1.4.1-5.1). So, after update this package with the newest package (pm-utils-1.4.1-19.1) from openSUSE repositories, the problem has gone.