Hi Morgan, On 2005-02-14, Morgan Read wrote: > Basically, I have a laptop with the mc1066 chip in that seems to be > doing _very_ strange things at start up. I've set up the mc1066 part of > sensors.conf so: > > label temp "Board" > label remote_temp "CPU" > (...) > set temp_low 40 > set temp_over 54 > set remote_temp_low 55 > set remote_temp_over 69 Setting low temps to 40 degrees doesn't sound like a sane thing to do. This means that temperatures below 40 degrees C will trigger an alarm. I do not personally consider it a problem when my systems run at 25 degrees C. In fact, down to 15 degrees C seems to be fairly acceptable for any hardware, so you could just set the low limits to this. BTW, are you sure you have an MC1066? That's a rare chip as far as I know. What laptop is this? Care to provide a dump of the chip (using i2cdump)? > Boot starts; fan off; fan slow; fan off; boot ends. I log in, sensors > reports settings as above, cpu temp climbs to 69, fan cuts in, the > values reset to: cpu high 127 (!!!); cpu low 55; board high 55; board > low -55 (!!!). Then, cpu temp drops to (perhaps) 54, fan stops, the > values reset to: cpu high 70 (?); cpu low -55 (!!!); board high 55; > board low -55 (!!!). Looks like a chip reset to me (IIRC 55/70/-55 are the chip defaults for the adm1021/max1617 family). 127 also might have a special meaning, I'd need to get my hands on a MC1066 datasheet to make sure. > The cpu temp climbs to 70, the fan cuts in and then things seem to > stabilise around cpu 57-62. > > Or something like that! Mad? Admittedly odd overall. > So, I'm trying to work out what on earth's going on? What version of lm_sensors are you using exactly? With what kernel? I remember we reworked the init process of the adm1021 driver some months ago, so if you're using a somewhat old version, you might get an improvement by simply updating it. -- Jean Delvare
