[Intel-gfx] [PATCH] drm/i915: Fix not finding the VBT when it overlaps with OPREGION_ASLE_EXT

Jani Nikula jani.nikula at linux.intel.com
Mon Feb 6 06:55:18 UTC 2017


On Sat, 04 Feb 2017, Hans de Goede <hdegoede at redhat.com> wrote:
> Hi Jani,
>
> So any further update on this ? I've just got a report from
> an user that my fix also fixes the LCD panel on his (different
> model, ACER SW5_017) machine not lighting up:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=155241#c56
>
> Although my fix my be in contradiction with the VBT spec,
> I do not see how it can really hurt, it just allows the
> VBT to extend into an unused part of the opregion.
>
> Something which windows 10 apparently allows, otherwise
> we would not have multiple models shipping with this
> problem, so it seems best to just allow this in Linux
> too.

Suffice it to say I'm pretty frustrated with this.

Let's get your patch merged, I'll reply to it with a couple of specific
comments.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center


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