[Nouveau] [Bug 39550] Brightness stuck to low value after suspend/resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=39550

--- Comment #15 from Emil Velikov <emil.l.velikov at gmail.com> 2011-09-26 12:16:29 PDT ---
(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/

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