2013/11/7 wzyboy : > Here is the output of lspci -vxxxx just now. I'll run this command > again when the bug occurs next time: Hi, I'm back. The bug occurs two more times, after the first of which I forgot to run that command. In the attachment is the output of lspci -vxxxx after the bug occured and before I rebooted my laptop. There are too many terriable 0xff there... -- wzyboy