Using Gnome, try to use the hibernate button, system wents to sleep but i can not restart.
i have resume device in Grub (swap)
System is a Dell Optiplex 760
Grafik: GeForce GT 610, driver nouveau
CPU: Intel Core2 Quad CPU Q6600 @ 2.40GHz
May it is caus of wireless Keyboard and Mouse??
Where i can start to investigate?