2010-11-17 13:41:08

by Patrick Schaaf

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

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



2010-11-21 16:51:53

by Maciej Rutecki

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

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