PCLOS 2010 KDE
I had a problem with my laptop when I closed my lid and upon reopening, my laptop was locked up. Searched many forums and tried many different settings, i.e. Compiz on/off, Kwin on/off. Different power management settings for laptop lid close - Do nothing, turn off screen, suspend, hibernate, etc. Modified lm_lid.sh, changed kernel boot options, etc. Nothing seemed to work but I finally did arrive to a FIX and wanted to share in case anyone was experiencing similar problems.
- Suspend and Hibernate worked when activated through the Menu but not when I tried to resume from a closing the lid
- When I had Compiz or Kwin Desktop effects enabled, system would completely hang
- With desktop effects disabled, I was able to somewhat recover by Ctrl-Alt-F1 and then Crtl-Alt-F7 but only a mouse pointer and a message about the Monitor has changed which led me to the following Bughttps://bugs.kde.org/show_bug.cgi?id=236869
With this, I went into the Service Manager by switching the start menu to the kickoff Menu style, searched for services and selecting the Service Manager program. There I stopped "Detecting RANDR (monitor) changes" and unchecked the use box. After that I have had no problems with the lid closing event.
Hope this helps!