[Bug 73704] Display on baytrail all-in-one non functional after bios update

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73704

--- Comment #16 from Imre Deak <imre.deak at gmail.com> ---
(In reply to comment #15)
> Robert, could you answer Rodrigo's questions in comment 9?
> 
> Also (an idea from Jesse) that even though our driver detects your display
> as DP (external monitor) you might actually have an embedded panel (eDP).
> Could you confirm this somehow?
> 
> Also please provide the content of /sys/kernel/debug/dri/0/i915_opregion
> with your current BIOS, and if you can the same with the earlier BIOS that
> used to work.
> 
> Thanks.

Could you also try if the following patch fixes the problem?

https://patchwork.kernel.org/patch/3557501/

In any case I'll ask danvet to cc this patch to stable.

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