[Bug 91585] [BDW] System hard lock-up on resume from suspend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91585

--- Comment #18 from Joonas Lahtinen <joonas.lahtinen at linux.intel.com> ---
Please, test against kernel from http://cgit.freedesktop.org/drm-intel/ branch
drm-intel-nightly.

I was unable to get any hangs or display artifacts while doing 60 suspend
resume cycles so it makes it impossible for me to debug.

It would be optimal if you could enable (USB) serial console from kernel and
set the drm module debug parameter to -1 before suspending and try to capture
as much debug as possible. Then it would give an indication what could possibly
be causing the lock-ups.

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