Ubuntu
linux-source-2.6.22 package

  1. Bug #173652
  2. Comment #60

Comment 60 for bug 173652

Revision history for this message
darylb (darylblanc) wrote : Re: unable to adjust screen brightness on recent Sony Vaio notebooks

Regarding the Intel chip issue on Sony Vaio's, the xbacklight xrandr workaround no longer works on Intrepid Ibex Alpha 3 (running livecd):

root@ubuntu:~# xbacklight -set 50
No outputs have backlight property
root@ubuntu:~# xrandr --output LVDS --set BACKLIGHT_CONTROL native
X Error of failed request: 170
  Major opcode of failed request: 151 (RANDR)
  Minor opcode of failed request: 15 ()
  Serial number of failed request: 14
  Current serial number in output stream: 14
root@ubuntu:~# xbacklight -set 50
No outputs have backlight property
root@ubuntu:~#