Ubuntu
xserver-xorg-video-intel package

  1. Bug #397617
  2. Comment #25

Comment 25 for bug 397617

Revision history for this message
In , Zhang Rui (rui-zhang) wrote :

re comment #16 and #17
please attach the acpidump output.
this is an ACPI problem because the ACPI backlight control methods don't work.