Hi Alexandros, On Fri, 12 Nov 2010 22:01:25 +0200, Alexandros Diamantidis wrote: > * Luca Tettamanti [2010-11-12 14:13]: > > The problem with the native driver is that it uses resources that are > > claimed by ACPI, which might be unsafe. > > Hmm... How unsafe would it be? A crash once a year I wouldn't > mind much, frequent random memory corruption would be worse ;-) Data corruption when reading the sensor values or writing the limits. This may simply mean that "sensors" will return wrong values once in a while, but could also result in the BIOS taking actions to fight what it thinks is a critical thermal condition. This would mean CPU throttling or instant shutdown. > * Jean Delvare [2010-11-12 19:03]: > > Can you please test the standalone driver at: > > http://khali.linux-fr.org/devel/misc/it87/ > > > > It has fixed manual fan speed control for the IT8721F. Hopefully it > > works now... > > Just tried the new version with no obvious change. pwmconfig still > doesn't seem to do anything. Also tried echo 1 > pwm[123]_enable; > echo 0 > pwm[123], which should have stopped the fans, right? Yes it should have... Hmm. Could you please: * Try again after disabling Q-Fan in the BIOS. Maybe I missed an initialization step for the manual mode. * Both with and without Q-Fan, check whether the values you write to pwm[123] and pwm[123]_enable stick. Read them once 3 seconds after writing them, and then again 6 and 30 seconds after writing them. Test values 0, 1 and 2 for pwm[123]_enable, and any two random values for pwm[123] after writing 1 to pwm[123]_enable. * With Q-Fan mode set, not trying to enable manual control mode, check the values of pwm[123]_enable. One of them at least should be 2. See if the corresponding reported pwmX value changes over time depending on CPU load. Thanks, -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
