[lkml]   [2012]   [Sep]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] i915: Quirk out disconnected backlight
On Fri, Sep 14, 2012 at 2:01 PM, Chris Wilson <> wrote:
> On Fri, 14 Sep 2012 13:57:06 +0100, Grant Likely <> wrote:
>> Some platforms (for instance MacbookPros) have custom backlight drivers
>> and don't use the integrated i915 backlight control. This patch adds a
>> quirk to disable registering the intel backlight when unused on a
>> platform.
>> Tested on MacbookPro8,3. Without this patch both the intel_backlight and
>> gmux_backlight devices get registered and userspace doesn't know which
>> it should use.
> Userspace is informed throught the backlight/type property.

Perhaps, but userspace (Ubuntu) isn't doing anything with it, and it
still remains that it makes no sense whatsoever to register a
backlight device that doesn't exist.


> -Chris
> --
> Chris Wilson, Intel Open Source Technology Centre

Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

 \ /
  Last update: 2012-09-14 15:41    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean