[Bug 86565] black screen after resume from hibernation since linux kernel 3.18

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86565

--- Comment #3 from Imre Deak <imre.deak at intel.com> ---
(In reply to Martin Steigerwald from comment #2)
> Oh it definately loads in the hibernation image. I see the kernel messages
> where it tells progress in 10 percent steps. Then it switches to black
> screen and sits there while the machine seems to be not completely locked. I
> think I saw some disk activity. Next time I may leave it running like that
> for some minutes. Maybe it will eventually write something into logs.

Could you boot with the kernel parameters "drm.debug=0xe no_console_suspend
initcall_debug" and provide the dmesg log after the hang? If you can't access
the device otherwise, you could try using serial console or netconsole.

Can you reproduce the problem if you boot with nomodeset?

Could you try the git://anongit.freedesktop.org/drm-intel drm-intel-nightly
branch? It contains some S3/S4 fixes that may help here.

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