[Intel-gfx] [pull] drm-intel-fixes

Stéphane Marchesin stephane.marchesin at gmail.com
Wed May 22 17:25:50 CEST 2013

On Wed, May 22, 2013 at 12:13 AM, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Wed, May 22, 2013 at 3:24 AM, Stéphane Marchesin
> <stephane.marchesin at gmail.com> wrote:
>> On Mon, Sep 10, 2012 at 12:28 AM, Daniel Vetter <daniel at ffwll.ch> wrote:
>>> Hi Dave,
>>> You're pull just reminded me that I've been sitting on a few small -fixes,
>>> too. Nothing really major at all:
>>> - fixup edp setup sequence (Dave)
>>> - disable sdvo hotplug for real, this is a fixup for a messed-up
>>>   regression fixer (Jani)
>>> - don't expose dysfunctional backlight driver (Jani)
>> Hi Daniel,
>> This change ("don't expose dysfunctional backlight driver") regresses
>> the backlight on Chromebooks, where we don't run the vbios.
> Presuming the patch works as advertised it only stops publishing an
> intel backlight driver which won't work. How does that break stuff?

Well it probably works as advertised to avoid exposing some broken
backlight, but the problem is that it also stops exposing a working
backlight on Chromebooks. However it sounds like the initial patch is
specific to a broken machine, so maybe a dmi match is more

> Or do you somehow update the max blc stuff only once i915.ko is loaded?

Yup that's what used to happen.


> I'm decently confused how that one blows up ...
> Yours, Daniel
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch

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