> Yes, sensors-detect has suggested it ... here is my /etc/modules > (after running sensors-detect 2.8.0): > > --- snip --- > # I2C adapter drivers > i2c-viapro > i2c-isa > > # I2C chip drivers > adm1021 > eeprom > w83781d > --- snip --- > > I don't know if viapro is used, but it's in the "i2c-core" list The i2c-viapro module is used by the eeprom module. This is only useful to read the SPD EEPROMs found on your memory modules, and I guess you can live without it, so feel free to remove i2c-viapro and eeprom from the list for faster operations. Before you do that, however, I'm interested in the adm1021 problem. You don't seem to have such a chip on your system, so I wonder why sensors-detect told you to use it. Could you please provide a full log of sensors-detect? Please unload all chip drivers (adm1021, eeprom, w83781d) before running sensors-detect again. I suspect you have an unsupported chip that has been misdetected as an adm1021 clone. > > Could you try writing to the files by yourself? For example, move to > > /proc/sys/dev/sensors/w83697hf-isa-0290 and do: > > echo "50 60" > temp1 > > Then read back the values from temp1. Does it work? > > yes, it works! > > # echo "30 40" > temp1 > # cat temp1 > 30.0 40.0 32.0 > # echo "50 60" > temp1 > # cat temp1 > 50.0 60.0 32.0 So the /proc interface isn't at fault here. The two suspects left are: libsensors, and sensors itself. I'm not fully qualified to track that kind of bug. I think that Philip Pokorny would be much more that I am. In a similar case, he suggested to use "strace -o /tmp/sensors.strace sensors -s". Maybe we can start with that. Maybe the problem is that sensors drops its root priviledges at some point. But I don't know why nor how it could do that. All I know is that only Debian-system-based (or clones) users have reported the problem, which is probably not a simpe coincidence. What's more, I think I remember the i2c-isa module was in use each time. That too is probably not a coincidence. What do Debian systems have particular, and what does the i2c-isa module do that other bus drivers don't? -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/
