https://bugs.freedesktop.org/show_bug.cgi?id=51190
--- Comment #4 from Michel Dänzer michel@daenzer.net 2012-06-19 09:45:43 PDT --- (In reply to comment #4)
I have tried suspend from X (Xfce) and from console (using pm-suspend).
Have you also tried writing mem to /sys/power/state directly?