Version: unspecified (using KDE 4.5.85) OS: Linux When KDE powermanagement dimms the screen, the original screen brightness is not restored afterwards (when using the notebook again). I have a Thinkpad X201, if this information is relevant. Reproducible: Always OS: Linux (i686) release 2.6.37-7-generic-pae Compiler: cc
I cannot reproduce here. Does this happen everytime? Can you please confirm that, in your case, when the screen starts dimming and you move the mouse after that the brightness is not restored?
Yes, this happens every time. More precisely: I have not watched this right after dimming, rather when I return to my notebook and the screen is blanked out allready and i move the mouse, then the screen first turns to nearly, may be the original brightness, but instantly is dimmed again and can only be changed manually then.
Uhm, I see. May I ask you to test the scenario I described above? (The first dim event happens after half of the dimming time, so if your screen dims after 5 minutes, after 2,5 minutes brightness will start dropping) I fear this might be a problem with the policy agent.
I just wanted to try and found something else. In order to try, I set down the time to dimm from 30 min, to 5 min. After I applied this, the screen dimmed immediatly. It looks like, the power management is not aware of the full brightness capazity of my machine. I tried this with or without the screen brightness setting (in case of activation, it was set to full). In both cases the screen dimmed only after setting the value to 5 min. Which means the problem might not be that the powermanagement is not trying to turn dimming of, rather that it does not have the correct values for this.
Ok, I have found the cause. It is something else and after I found out quite simple: The KCM-module does not show the full slider and there is no indication that something could be missing. Therefor the setting of brightness is not set to the highest value. If I enlarge the slider to full screen, everything is shown, I can change the setting, problem solved :-) I do not if I should keep this open, for me the problem is solved. Other may still stumble upon this problem. A solution would be preventing the slider of not being fully shown and/or indicating that, if it is the case.
So it is a problem of default sizes? In this case you can definitely close the bug, but I'd still appreciate a screenshot, so that I can do something about it nonetheless :)
ok, I was wrong. It was nothing about the window size. It really seams that the power management has not the right information about the brightness.
*** Bug 260731 has been marked as a duplicate of this bug. ***
From the duplicate info, it really looks like a problem with the Policy Agent and ck... will check it out
*** This bug has been marked as a duplicate of bug 261590 ***