Comment 20 for bug 1161962

I'm experiencing this as well. One time I opened the lid after the system had woken up and immediately closed it again and the system didn't suspend any more.
Even worse: I couldn't power it down. At all. I held the power button for 30 seconds yet nothing happened. I had to unplug the power cord and let it sit there during the night until the battery was empty. The next day I was able to start it again.