[Bug 568611] Re: Screen brightness control fails on Dell Studio 1558

[Kamal Mostafa]

I have ported the proposed new backlight control mechanism[1] --
primarily the work of Matthew Garrett -- to Ubuntu Maverick (2.6.35
kernel).  Many thanks to Matthew for his fine work!

An EXPERIMENTAL Maverick kernel PPA which includes the fix (plus some
Dell-specific glue) is available.   I have tested this on a Dell Studio
1558 only, but it may fix the brightness controls for other laptop
brands and models also.  See the IMPORTANT installation notes on the PPA
page for more details:

Maverick PPA:  https://launchpad.net/~kamalmostafa/+archive/linux-kamal-
mjgbacklight

Feedback to this bug report will be appreciated.

Developers: The source patches are also available for inspection[2].  Be
aware that Matthew's patches were slightly modified from their original
form by me, for the 2.6.35 backport.

I do not intend to backport this work to Ubuntu Lucid at this time.

[1] http://lists.freedesktop.org/archives/intel-gfx/2010-September/008081.html
[2] http://kernel.ubuntu.com/git?p=kamal/ubuntu-maverick.git;a=shortlog;h=refs/heads/mjg-backlight

-- 
Screen brightness control fails on Dell Studio 1558
https://bugs.launchpad.net/bugs/568611
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