[Bug 101865] [SNB] Blank screen after resume with Intel Sandy Bridge

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101865

--- Comment #3 from nutrinfnon at gmx.com ---
I think it is a regression, I always used hibernation with 4.11.0. Since 4.12.x
starts this resume problem.

I done test with drm.debug=0xe:
 first time, I executed "systemctl hibernate" and at kernel time [53.314063]
resume fails, system is working but screen is off;
 second time, I executed "systemctl hibernate" and at kernel time [431.539799]
resume fails too. This time, system is always working but screen is on with
dirty image, no ctrl-alt-f1 possible;

in attach dmesg.





Thanks

P.S. I changed hardware for do better test.

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