Two days ago, I started looking into this again. After some adjustments, hibernation works for now. Dropping the solution here in case it helps. The likely culprit seems to be a RAM upgrade from 16 to 32 GiB. During this process, I forgot to adjust my SWAP partition, which was also just 16GB in size. I use ZFS, which fills a large portion of the RAM with L2ARC data, so that might have been just too big for the swap partition. TL;DR the size of the swap partition was too small. Am 22.01.2017 um 14:55 schrieb Andreas Innerlohninger:
In my case it had to do something with lightDM/light-locker. I solved it by switching to gdm.
On Jän 20, Carlchristian Eckert wrote:
I have the same problem since several months. Suspend to disk causes a blank screen (as supposed to happen) and then freezes the system with 100% cpu load. However, no useful log messages could be found, so I dropped the issue.
Happens on my desktop machine, no matter how I initiate the hibernation. (pm-hibernate, systemctl hibernate, echo "disk" > /sys/power/state)