"In 8.1.7 you can enable suspend/sleep mode manually:
- Go to \\Configfiles\sleep.conf.d (in Windows) or /storage/.config/sleep.conf.d (over SSH).
- Rename sleep.conf.sample to sleep.conf
- Open sleep.conf and remove this line: SuspendMode=false
- Reboot, enjoy."
Yes, that's exactly how I set it up, thanks for putting it up again. But, I'm still not able to enable suspend mode.