[Bug 117181] graphic glitches for Kernel > 4.2 Intel HD 5xx and skylake

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=117181

--- Comment #1 from yves.dufournaud at gmail.com ---
there is another issue: resuming from suspend to ram is failing, I would have
filled a separate bug, but apparently it can be linked to graphics.

following the instruction here:
https://01.org/linuxgraphics/documentation/development/how-debug-suspend-resume-issues

S3 suspend (a.k.a Suspend To RAM):
dmesg > dmesg_before; echo mem > /sys/power/state; dmesg > dmesg_after

the machine go to sleep : led blinking
after pressing power button, make machine reboot.
but dmesg_after exists with same content as dmesg_before, so quoting source:

"If dmesg_after exists, it means that the system can be resumed from BIOS, so
it's likely to be a graphics issue. Otherwise, it's not related to graphics and
don't report it to freedesktop.org bugzilla."

will try to set Enable "CONFIG_PM_DEBUG" for next test

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