2007/8/13, lm-sensors <lm-sensors-notify at lm-sensors.org>: > #2179: Treat strange fan speed (like 675 000 rpm) as "0" > -------------------------------------+-------------------------------------- > Reporter: piotr.czepek at gmail.com | Owner: khali > Type: enhancement | Status: assigned > Priority: minor | Milestone: > Component: fancontrol | Version: > Resolution: | Keywords: > -------------------------------------+-------------------------------------- > Changes (by khali): > > * status: new => assigned > * reporter: ticket => piotr.czepek at gmail.com > * cc: piotr.czepek at gmail.com (removed) > * component: misc => fancontrol > * priority: trivial => minor > * owner: somebody => khali > * keywords: fan speed driver => > > Comment: > > What driver are you using? I can't remember seeing a driver report high > speeds for stopped fans. > > I don't much like the idea of arbitrarily discarding some reported fan > speed values. You should probably simply avoid using low duty cycle PWM if > it results in bad speed readings. You may get better results by using a > lower base frequency for the PWM. > > -- > Ticket URL: <http://lm-sensors.org/ticket/2179#comment:1> > lm-sensors <http://lm-sensors.org/> > Linux hardware monitoring Hi, I use w83627hf driver. I agree, discarding some fan speed values is bad idea. But, AFAIK there is no way to change base frequency for PWM output. I use fancontrol to control fan speed, so I think I need to patch fancontrol to make some duty cycle limits. Anyway, problem is caused by low duty PWM and I can't find good solution for this hardware problem. sensors output: w83627hf-isa-0290 Adapter: ISA adapter VCore 1: +1.76 V (min = +1.54 V, max = +1.95 V) VCore 2: +1.52 V (min = +1.54 V, max = +1.95 V) ALARM +3.3V: +3.25 V (min = +2.82 V, max = +3.79 V) +5V: +4.78 V (min = +0.00 V, max = +0.00 V) ALARM +12V: +12.40 V (min = +7.78 V, max = +0.61 V) ALARM -12V: -12.28 V (min = -13.59 V, max = -9.65 V) -5V: -5.50 V (min = -7.31 V, max = -7.71 V) ALARM V5SB: +5.48 V (min = +0.00 V, max = +0.86 V) ALARM VBat: +3.09 V (min = +0.00 V, max = +0.00 V) ALARM fan1: 0 RPM (min = -1 RPM, div = 2) ALARM fan2: 0 RPM (min = 21093 RPM, div = 2) ALARM fan3: 675000 RPM (min = -1 RPM, div = 2) ALARM temp1: +40?C (high = +0?C, hyst = -128?C) sensor = thermistor ALARM temp2: +46.0?C (high = +66?C, hyst = +61?C) sensor = diode (beep) temp3: +42.5?C (high = +66?C, hyst = +61?C) sensor = thermistor (beep) vid: +1.750 V (VRM Version 8.2) alarms: beep_enable: Sound alarm enabled -- Best regards piotr
