2.6.37-rc2 vs. 2.6.36 laptop backlight changes?

2.6.37-rc2 vs. 2.6.36 laptop backlight changes?

[Patrick Schaaf]

Hi,

were there any changes between 2.6.36 and 2.6.37-rc2 that would affect
laptop display backlight control?

I have a Dell Latitude D630 laptop, with Intel on-board graphics

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (rev 0c)

used docked in dual-monitor setup. System is openSUSE 11.3, X.Org X
Server 1.8.0

I notice that after logging in, under 2.6.37-rc2, the backlight of the
laptop display is dimmed down. Using the brightness keys can turn it
back up again. Logging out and logging in again, dims it again.

I do not notice this with 2.6.36.

Anything to try to resolve or diagnose this?

best regards
  Patrick

Re: 2.6.37-rc2 vs. 2.6.36 laptop backlight changes?

[Maciej Rutecki]

On środa, 17 listopada 2010 o 14:41:02 Patrick Schaaf wrote:
> Hi,
> 
> were there any changes between 2.6.36 and 2.6.37-rc2 that would affect
> laptop display backlight control?
> 
> I have a Dell Latitude D630 laptop, with Intel on-board graphics
> 
> 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
> Integrated Graphics Controller (rev 0c)
> 
> used docked in dual-monitor setup. System is openSUSE 11.3, X.Org X
> Server 1.8.0
> 
> I notice that after logging in, under 2.6.37-rc2, the backlight of the
> laptop display is dimmed down. Using the brightness keys can turn it
> back up again. Logging out and logging in again, dims it again.
> 
> I do not notice this with 2.6.36.
> 

I created a Bugzilla entry at 
https://bugzilla.kernel.org/show_bug.cgi?id=23472
for your bug report, please add your address to the CC list in there, thanks!

-- 
Maciej Rutecki
http://www.maciek.unixy.pl