meven added a comment.
I tried using it but my system does not suspend-then-hibernate mode. You can check if your system supports it once you have systemd >= 239 and the following command returns true : qdbus org.freedesktop.PowerManagement /org/freedesktop/PowerManagement CanSuspendThenHibernate Or this one should have the same result : qdbus org.freedesktop.PowerManagement /org/freedesktop/PowerManagement CanHibernate REPOSITORY R122 Powerdevil BRANCH arcpatch-D16425_1 REVISION DETAIL https://phabricator.kde.org/D16425 To: avaldes, broulik, ngraham Cc: ericadams, jobauer, reverendhomer, meven, soriano, abalaji, graesslin, ngraham, plasma-devel, LeGast00n, jraleigh, fbampaloukas, GB_2, ragreen, Pitel, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart