So this problems (and https://bugzilla.suse.com/show_bug.cgi?id=966593) seems to fixed by dropping some boot options. THX!! ------------------------------------------------------------------- Should make a bug report the remaing mce error and the missing backlight thing of the graphic card? -------- PS:Changing the bug title of the bug could cause missunderstandings. At least I am a little bit confused now. Ok, the cpu 4 kernel problem and the graphic problem (https://bugzilla.suse.com/show_bug.cgi?id=966593) seems to fixed.