linux-kernel - Re: backlight control broken on Sony VGN-P21Z with staging/gma500

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Message-ID: <20110413203423.GA6152@kroah.com>
Date:	Wed, 13 Apr 2011 13:34:23 -0700
From:	Greg KH <greg@...ah.com>
To:	Joost Pjotr Vermeer <jp@...ea.net>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: backlight control broken on Sony VGN-P21Z with staging/gma500

On Wed, Apr 13, 2011 at 09:54:45PM +0200, Joost Pjotr Vermeer wrote:
> Hi,
> 
> I tried the new gma500 driver from staging on my Sony VGN-P21Z. It
> seems to work very nice.
> 
> But backlight control does not work. It has worked with a previous
> version of the staging/gma500 driver. I can solve it by removing the
> call to acpi_video_register() from psb_driver_load() in psb_drv.c.
> 
> Can I try anything to find a more specific cause for this?

Use 'git bisect' to find the offending patch?

thanks,

greg k-h
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