[Regression] 83f45fc turns machine's screen off

[Emmanuel Benisty]

Hi Daniel,

Thanks for your reply and very sorry for the belated reply, some gmail
filtering issues...

On Mon, Nov 10, 2014 at 10:19 PM, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> Adding relevant mailing lists.
>
>
> On Sat, Nov 8, 2014 at 7:34 PM, Emmanuel Benisty <benisty.e at gmail.com> wrote:
>> Hi,
>>
>> The following commit permanently turns my screen off when x server is
>> started (i3 330M Ironlake):
>>
>>     [83f45fc360c8e16a330474860ebda872d1384c8c] drm: Don't grab an fb
>> reference for the idr
>>
>> Reverting this commit fixed the issue.
>
> This is definitely unexpected. I think we need a bit more data to
> figure out what's going on here:
> - Please boot with drm.debug=0xe added to your kernel cmdline and grab
> the dmesg right after boot-up for both a working or broken kernel.

Please see attached files.

> - Are you using any special i915 cmdline options?

Nope.

Thanks a lot,
Emmanuel
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