It give some good news. I know what change creates the problems. It's the new kernel update. With the 3.4.5-2.fc17.x86_64 is all working great but not with the 3.5.2-1.fc17.x86_64. Can you help to debug the problem. It's my first time to debug problems on kernel level. In the standard syslogs I don't find anything. Hope to hearing from you in the near future. -- Best regards Yannik Lieblinger