Ubuntu
xbacklight package

  1. Bug #176888
  2. Comment #32

Comment 32 for bug 176888

Revision history for this message
mostafa (mostafa-samadimaleh) wrote : Re: Backlight dimming not working in Hardy or Intrepid because of wrong XRandR BACKLIGHT_CONTROL setting

Even in STAMINA Mode I couldn't solve my problem/. I got an error executing xrandr

mostafa@mostafa-laptop:~$ xrandr --output LVDS --set BACKLIGHT_CONTROL native
X Error of failed request: 171
  Major opcode of failed request: 154 (RANDR)
  Minor opcode of failed request: 15 ()
  Serial number of failed request: 14
  Current serial number in output stream: 14

what can I do?