Acer Extensa 4620Z
openSUSE 12.1 with KDE 4.7.2 release 5

Hello. I installed 12.1 and so far I like it very much. I was playing with Sleep and Hibernation. Hibernation is fine. When I close the laptop lid the computer sleeps, but when I open the lid it does not come back on. If I press the keyboard, or power button, the computer starts to wake up, but fails. The computer makes a second attempt, but then just boots from bios and on to grub. During booting I can see the recovering journal bit, as if a power failure had happened. The latest bios is installed. Any ideas?