Created attachment 771476 [details]
Log of kernel-vanilla + drm.debug=0x0e

A laptop with hybrid graphics won't suspend after it was hibernated and
restored. It may not happen on the fist time, but the main idea is that laptop
stops suspending to ram at some point if it was hibernated at least one time.
Also, it won't shut down gracefully, there are some error messages about
nouveau errors and stalled CPU cores.

I'm using kernel-vanilla, as kernel-default still has bug 1094751, but if you
apply fix proposed in that report, kernel-default behaves identically to
kernel-vanilla.