ubuntu-x-swat team mailing list archive

[Drew Snellgrove <launchpad@xxxxxxxxxxxx>]

There seem to be a number of people, including Macbook users, reporting
that their backlight is non-functional in Karmic.  This bug seems the
most relevant and most comments seemed to point to this one as well.

I'm using a Macbook 2,1 and don't have a usable backlight, leaving me
stuck at max brightness (AAAH, my poor eyes!).  The backlight existed
and worked with Hardy, Intrepid, and Jaunty (with a couple issues that
aren't relevant here).

$ xbacklight
No outputs have backlight property
 $ ls -a /sys/class/backlight/
.  ..
$

This occurs when using kernel linux-image-2.6.31-14-generic (current
Karmic default) or linux-image-2.6.32-020632rc5-generic (most recent
from the kernel ppa)

Also tried xserver-xorg-video-intel 2:2.9.0-1ubuntu2 (current Karmic
default) and 2:2.9.0+git20091019.751e0a3e-0ubuntu0tormod2 (from xorg-
edgers ppa).

Using 'nomodeset' when booting either kernel drops me into a terminal
login that flickers unendingly.

It's been mentioned a couple times this was fixed through a kernel patch
but I'm unsure if it's made it into linux-
image-2.6.32-020632rc5-generic.  Is there anything else I can do to try
and help pin down this bug?

-- 
brightness no more working on karmic (KMS)
https://bugs.launchpad.net/bugs/397617
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which is the registrant for xf86-video-intel.