[Intel-gfx] [PATCH] drm/i915: Unlock panel even when LVDS is disabled

[Jani Nikula]

On Tue, 02 Dec 2014, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Tue, Dec 02, 2014 at 01:43:59PM +0100, Alexey Orishko wrote:
>> On Mon, Dec 1, 2014 at 5:56 PM, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
>> > Otherwise we'll have backtraces in assert_panel_unlocked because the
>> > BIOS locks the register. In the reporter's case this regression was
>> > introduced in
>> >
>> > commit c31407a3672aaebb4acddf90944a114fa5c8af7b
>> > Author: Chris Wilson <chris at chris-wilson.co.uk>
>> > Date:   Thu Oct 18 21:07:01 2012 +0100
>> >
>> >     drm/i915: Add no-lvds quirk for Supermicro X7SPA-H
>> >
>> > Alexey, please test this patch.
>> >
>> 
>> Thank you for the patch.
>> I've tested this patch on the failed system (BIOS ver.1.0) with 3.17.4
>> kernel and it looks good.
>> - Do you need dmesg log?
>
> Nope.
>
>> - Could this patch be merged into 3.18 kernel?
>
> Jani, can you please pick this one up as a regression fix?

Pushed to drm-intel-fixes, thanks for the patch and testing.

BR,
Jani.


>
>> I've also checked that everything still ok on other mobos with BIOS
>> ver.1.0c and 1.2a.
>> 
>> One more question slightly out off topic:
>> - could I use i915 driver with other Intel Atom CPUs, such as D2550
>> and Avoton C2550?
>
> Anything newer than what you have right now likely means gma500 (which is
> horrible), unless it's a baytrail. Buyer beware, please triple-check that
> it works before placing an order. Since I have no clue about marketing
> names I'll refrain from a recommendation (too many ppl burned already).
> -Daniel
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch

-- 
Jani Nikula, Intel Open Source Technology Center