In 17.04, hibernate worked good. Now since 17.10 the PC does not come up after hibernation. Something starts, but the screens stays black and the keyboard lights do not go on. /var/log/syslog is empty for that time, nothing is logged. Suspend works. How can I further debug this to find out what it could be?
(PC with Asus mainboard and Intel i7 CPU, Ubuntu 17.10, kernel 4.13.0-37)