Created attachment 741046 [details]
/sys/class/drm/card0/error

Hi,

our laptop is Lenovo T570 with an i5-7200 CPU with HD 610 graphics:
00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02)

It comes back without problems after suspend-to-ram, but fails after
suspend-to-disk/hibernate. X comes back but immediately freezes and
/var/log/messages shows:

2017-09-19T10:27:48.261833+02:00 helsinki kernel: [  642.797969] [drm] GPU
HANG: ecode 9:0:0xa43ff68b, in X [14823], reason: Hang on render ring, action:
reset
2017-09-19T10:27:48.261866+02:00 helsinki kernel: [  642.797975] [drm] GPU
hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
2017-09-19T10:27:48.261871+02:00 helsinki kernel: [  642.797976] [drm] Please
file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
2017-09-19T10:27:48.261875+02:00 helsinki kernel: [  642.797977] [drm] drm/i915
developers can then reassign to the right component if it's not a kernel issue.
2017-09-19T10:27:48.261878+02:00 helsinki kernel: [  642.797978] [drm] The gpu
crash dump is required to analyze gpu hangs, so please always attach it.
2017-09-19T10:27:48.261882+02:00 helsinki kernel: [  642.797980] [drm] GPU
crash dump saved to /sys/class/drm/card0/error
2017-09-19T10:27:48.261885+02:00 helsinki kernel: [  642.798092] drm/i915:
Resetting chip after gpu hang
2017-09-19T10:27:48.261888+02:00 helsinki kernel: [  642.798199] [drm] RC6 on
2017-09-19T10:27:48.273803+02:00 helsinki kernel: [  642.811661] [drm] GuC
firmware load skipped
2017-09-19T10:27:59.297801+02:00 helsinki kernel: [  653.833722] drm/i915:
Resetting chip after gpu hang
2017-09-19T10:27:59.297832+02:00 helsinki kernel: [  653.833830] [drm] RC6 on
2017-09-19T10:27:59.309814+02:00 helsinki kernel: [  653.848065] [drm] GuC
firmware load skipped

And after about 10 seconds, kdm restarts.

dmesg output from boot and the bug situation:
[    3.708133] i915 0000:00:02.0: enabling device (0006 -> 0007)
[    3.722593] [drm] Finished loading i915/kbl_dmc_ver1_01.bin (v1.1)
[    3.742234] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor
0
[    5.595734] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[  629.870249] [drm:gen9_set_dc_state [i915]] *ERROR* DC state mismatch (0x0 ->
0x2)
[  642.797977] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  642.798092] drm/i915: Resetting chip after gpu hang
[  653.833722] drm/i915: Resetting chip after gpu hang

It works fine after deinstalling drm-kmp-default, but as far as I've read, the
kabylake chips somehow need the newer code? We couldn't see any drawbacks
without drm-kmp-default at the first glance.

cu,
Frank