I'm using a KDE Ubuntu based distro (Linux Maya 13 KDE edition). I have installed tuxonice and if I execute this from the command line:
sudo hibernate
then it hibernates and resumes very quickly. If I try to do it from the KDE GUI, it just locks my desktop and nothing else. I suspect it is trying to execute:
pm-hibernate
Please, any hint about activating tuxonice in KDE? Or at least preventing asking for a password (due to "sudo").