https://bugzilla.kernel.org/show_bug.cgi?id=199025
--- Comment #29 from Paul van Maaren (kernel@vanmaaren.org) --- I just did the runlevel test and it does not make difference for me. I did:
ln -sf /usr/lib/systemd/system/multi-user.target /etc/systemd/system/default.target
and a reboot to 4.16.6-302 and ran:
echo mem > /sys/power/state
The power light stayed on and it does not wake up. I tried the same after booting to 4.14.18-300 that worked fine.