Ubuntu
linux package

  1. Bug #615803
  2. Comment #13

Comment 13 for bug 615803

Revision history for this message
Martin Pitt (pitti) wrote : Re: Computer freeze when removing power cable

Ah, sso I think this bug and bug 619397 are actually duplicates. When you remove the power cable, then gnome-power-manager tries to adjust the screen brightness.

So this looks like a bug in the ATI kernel DRM driver. Do you get the freeze if you do this?

  echo 3 | sudo tee /sys/class/backlight/*/brightness

Please also give me the output of

  ls -l /sys/class/backlight/

for completeness.