[BUG] [i915] black screen on boot -- backlight issue

[Jani Nikula]

On Mon, 05 Feb 2018, Alessandro Caputo <nonedisponibile at gmail.com> wrote:
> On 02/05, Jani Nikula wrote:
>> Try cherry-picking a979957b66b3 ("drm/i915/edp: Do not do link training
>> fallback or prune modes on EDP") from drm-tip branch of [2] and see if
>> it helps. Or try running the drm-tip branch.
>
> Hello and thanks for answering.
>
> I tried the latest drm-tip kernel and there I can't reproduce the bug.
> I also tried cherry picking that commit (whose SHA was actually
> a306343bcd7df89d9d45a601929e26866e7b7a81 [1]) to the main kernel (v4.15) and
> it was enough to fix the bug. Should I report the bug anyway, or will
> that commit eventually be merged in the mainline kernel?

Thanks for confirming, no need to report the bug, we'll take care of it.

BR,
Jani.


>
> Thanks again,
> Alessandro
>
> [1] https://cgit.freedesktop.org/drm-tip/commit/?id=a306343bcd7df89d9d45a601929e26866e7b7a81

-- 
Jani Nikula, Intel Open Source Technology Center