help me with HIBERNATION and SUSPEND

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https://bbs.archlinux.org – I'm a bit lost now, trying every possible thing to make my laptop properly hibernate or suspend at least.I've read archwiki and installed every possible thing: pm-utils, acpid, uswsusp. I've modified the needed files so that it could all work. But as soon as I try to hibernate or suspend, like thisdbus-send --system --print-reply --dest="org.freedesktop.UPower" \ /org/freedesktop/UPower org.freedesktop.UPower.Suspendor pm-hibernateor s2diskthat just do not work for my laptop model, as it seems.Instead all these manipulations lead me to one result -- the black screen, t (HowTos)