> If you're running cpuspeed, then send that process a SIGUSR1: > > # killall -USR1 cpuspeed Something odd is happening. If I run then above I get cpuspeed: no process kill strange, as I know cpuspeed was being used.... If I try and start it by hand I get [root@localhost ~]# cpuspeed Error: No speed steps could be determined! Which is even stranger, as I know this machine does speed step. It has been for a good few years now. Also now I cannot get back to a state with it working by rebooting. it seems permanently off. One thing which I am now wondering if it could be related, is this morning, for the first time I got a bios warning about my ac adaptor not being recognised and the system not working at optimal performance. Could this be related, and what "not optimal performance" means - Is it possible the bios does not let the system run at full speed if it cannot recognize the ac adaptor. ? I have a dell 8600 running FC5. cheers Chris