Ubuntu
alsa-driver package

  1. Bug #568611
  2. Comment #220

Comment 220 for bug 568611

Revision history for this message
bcbc (bcbc) wrote :

I'm running Oneiric, Dell 14R N4010
Since applying the patch, the brightness keys work, but only to toggle the screen off and on.

I tried adding the boot option "dell_laptop.backlight=0" but it didn't make a difference. Before I added that boot option I had a dell_backlight entry in /sys/class/backlight along with intel_backlight, but it's now I only see the intel_backlight entry.

bcbc@ubuntu:~$ uname -a
Linux ubuntu 3.0.0-8-generic #11+kamal~mjgbacklight5-Ubuntu SMP Fri Aug 12 23:53:11 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
bcbc@ubuntu:~$ ls /sys/class/backlight
intel_backlight
bcbc@ubuntu:~$

Here is the line from my grub.cfg:
linux /boot/vmlinuz-3.0.0-8-generic root=UUID=18B4B7BBB4B799A8 loop=/ubuntu/disks/root.disk ro crashkernel=384M-2G:64M,2G-:128M quiet splash dell_laptop.backlight=0 vt.handoff=7

PS your Natty patch worked great on this computer.