[Bug 176888] Re: Backlight dimming not working in Hardy or Intrepid because of wrong XRandR BACKLIGHT_CONTROL setting

[mostafa]

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

mostafa at 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?

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Backlight dimming not working in Hardy or Intrepid  because of wrong XRandR BACKLIGHT_CONTROL setting
https://bugs.launchpad.net/bugs/176888
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