I can't change my brightness on my laptop and I would like a help to solve this problem. Using kcmshell4 kgamma I can change the constrast. But using xbacklight nothing happens. If I put ...
In KDE, I have set my preferences so that if I unplug my laptop and then close the lid, it will go into sleep mode. However, if I close the lid first and then unplug it, it will not suspend. More ...