[PATCH] fix backlight brightness on intel LVDS panel after reopening lid

[Alex Riesen]

On Wed, Feb 16, 2011 at 20:54, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> On Wed, 16 Feb 2011 20:46:45 +0100
> Alex Riesen <raa.lkml at gmail.com> wrote:
>> > The backlight level on this Dell XPS M1330 reduces every time I reopen
>> > the lid, and BIOS does not seem to know anything about that (the
>> > keyboard shortcuts to set backlight brightness cause it to jump to the
>> > level next to the one set before closing the lid).
>>
>> It is this bug, I believe:
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=25072
>>
>> I somehow missed it at first, and only noticed after sending the patch.
>
> There's also this patch: https://patchwork.kernel.org/patch/499221/.
> It got things working on my E6510 again at least.

I don't think it is related. I don't have problems switching
the outputs (frankly, didn't try) and I do have problems
restoring backlight, very similar to what I had earlier in
2.6.37.