Ubuntu
linux package

  1. Bug #568611
  2. Comment #253

Comment 253 for bug 568611

Revision history for this message
rvgsd (rvgsd-id1) wrote :

Hi,

I have a Dell Studio 1558.
uname -a : Linux mypc-Studio-1558 2.6.35-32-generic-pae #67-Ubuntu SMP Mon Mar 5 21:23:19 UTC 2012 i686 GNU/Linux
With no boot parameters
ls /sys/class/backlight: acpi_video0
When using acpi_backlight=vendor as boot parameter:
ls /sys/class/backlight: dell_backlight

Until the latest update i.e. 2.6.35-32, the brightness up/down was working fine with "acpi_backlight=vendor" as the only boot parameter. After the update, the brightness up/down doesn't work and the screen is at full brightness. Note that I have the PAE kernel.

Help! (my eyes are burning and its exam time!!)

Thanks.!