Ubuntu
xserver-xorg-video-nouveau package

  1. Bug #921321
  2. Comment #18

Comment 18 for bug 921321

Revision history for this message
In , Emil-l-velikov (emil-l-velikov) wrote :

(In reply to comment #13)
[snip]
> Brightness control does not work before suspend, I did not try suspending. So
> no.
 [snip]
> I tried that. It works exactly the same as without this option. Brightness
> control works fine before suspend, fails after.

I see a bit of contradiction in here

Firstly can you try nouveau kernel git tree [1], as it includes some patches regarding backlight/brightness

Note: Fedora may have precompiled package that is up-to date (search for koji)

If it still fails please record the following

example
"with option "xxxxx" (acpi_backlight=vendor, nouveau.force_post=1)
before suspend - works, after - stuck"

it may be worth checking the registers (see comment 7) in each case as well

Cheers
Emil

[1] http://cgit.freedesktop.org/nouveau/linux-2.6/