On 120215, at 1:07, mike@trausch.us wrote: > This sounds suspiciously like an error loading firmware, which can > happen when you have a video adapter or WiFi adapter that needs > firmware, but doesn't have have the right one. I have indeed problems with firmware. I have a PC and use ethernet which works. I have an AMD Radeon 6xxx card. I tried both with linux-firmware AND radeon-ucode, but both fail to load. They do exist in /lib/firmware/radeon: CAYMAN_mc.bin CAYMAN_me.bin CAYMAN_pfp.bin CAYMAN_rlc.bin I guess dmesg explains things better than i do. Shall I clean and compile my kernel i remove or change sth. ? > Are there any firmware-related messages in your dmesg? Oh yes: http://pastebin.com/b95y3GaH Look at the area from 1.576863 to 62.228490, includes the 60s freeze from switching to clocksource tsc. Does the problem lay in my AMD gpu (hd6xxx) ?