linux-kernel - Re: back light conflict i915 vs dell-laptop

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Date:	Sun, 28 Nov 2010 22:36:22 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Patrick Schaaf <bof@....de>
Cc:	chris@...is-wilson.co.uk, mjg@...hat.com, rpurdie@...ys.net,
	kernelorg@....de, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, keithp@...thp.com
Subject: Re: back light conflict i915 vs dell-laptop

On Sun, Nov 28, 2010 at 07:05:27PM +0100, Patrick Schaaf wrote:
> On Thu, 2010-11-25 at 12:33 +0300, Dan Carpenter wrote:
> > Patrick Schaaf has reported that the i915 driver is setting his
> > backlight very dim when he starts GDM.
> > 
> > https://bugzilla.kernel.org/show_bug.cgi?id=23472
> > 
> > It should be the dell-laptop platform driver controlling his backlight.
> > 
> > Gnome tries to restore the backlight settings through the dell_laptop
> > interface in sysfs but it fails.  (Because the platform hardware refuses
> > to set the settings to what it thinks they already are).
> 

Keith Packard wrote in another thread that there were some patches
to address this in his git repo:

git://people.freedesktop.org/~keithp/linux-2.6 drm-intel-next

regards,
dan carpenter


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