Comment # 7 on bug 988586 from Takashi Iwai

Try to remove quiet boot option.  Then it'll show more messages.  Also there
are other debug options for systemd and dracut.  (Google is your friend.)

The last error message in the picture was about USB.  But it might be a red
herring, as the apparently pending task seems to be the resuming from the disk
itself.  In anyway, adding Oliver to Cc, to be sure.

Another test would be the standard PM test, as described in
/usr/src/linux/Documentation/power/basic-pm-debugging.txt via
/sys/power/pm_test.

BTW, you don't use the encrypted root fs, or such, right?