Re: 2.6.30-rc1 (latest git): thinkpad-acpi: cannot controlbrightness with hotkeys (BISECTED)

From: Zhang Rui
Date: Tue Apr 14 2009 - 21:51:23 EST


On Wed, 2009-04-15 at 09:50 +0800, Zhang Rui wrote:
> On Wed, 2009-04-15 at 07:59 +0800, Niel Lambrechts wrote:
> > On 04/13/2009 10:34 PM, Henrique de Moraes Holschuh wrote:
> > > On Mon, 13 Apr 2009, Niel Lambrechts wrote:
> > >
> > >>>> In 2.6.29.1:
> > >>>> lrwxrwxrwx 1 root root 0 Apr 12 20:01 /sys/class/backlight/acpi_video0
> > >>>> -> ../../devices/virtual/backlight/acpi_video0
> > >>>>
> > >
> > > Well, that at least confirms that thinkpad-acpi doesn't have anything to
> > > do with your troubles, you were using acpi video.
> > >
> >
> > Okay, I've bisected it to:
> >
> > 74a365b3f354fafc537efa5867deb7a9fadbfe27 is first bad commit
> > commit 74a365b3f354fafc537efa5867deb7a9fadbfe27
> > Author: Matthew Garrett <mjg59@xxxxxxxxxxxxx>
> > Date: Thu Mar 19 21:35:39 2009 +0000
> >
> > ACPI: Populate DIDL before registering ACPI video device on Intel
> >
>
> please set CONFIG_DRM_I915_KMS, reload the ACPI video driver after
> loading i915 and see if it helps.
>
sorry, you don't need to reload the ACPI video driver...

> thanks,
> rui
>
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