On 07/03/2009 07:05 PM, Niels wrote: > Jean Delvare wrote: >> On Fri, 03 Jul 2009 18:24:38 +0200, Niels wrote: >>> Jean Delvare wrote: >>>>> There are no usable PWM outputs. >>>> Hmm, you are root, aren't you? >>> nelis at nelis-desktop:/$ sudo pwmconfig >>> # pwmconfig revision 5630 (2009-01-29) >>> This program will search your sensors for pulse width modulation (pwm) >>> controls, and test each one to see if it controls a fan on >>> your motherboard. Note that many motherboards do not have pwm >>> circuitry installed, even if your sensor chip supports pwm. >>> >>> We will attempt to briefly stop each fan using the pwm controls. >>> The program will attempt to restore each fan to full speed >>> after testing. However, it is ** very important ** that you >>> physically verify that the fans have been to full speed >>> after the program has completed. >>> >>> Found the following devices: >>> hwmon0 is acpitz >>> hwmon1/device is k8temp >>> hwmon2/device is f71862fg >>> >>> Found the following PWM controls: >>> hwmon2/device/pwm1 >>> hwmon2/device/pwm1 is currently setup for automatic speed control. >>> In general, automatic mode is preferred over manual mode, as >>> it is more efficient and it reacts faster. Are you sure that >>> you want to setup this output for manual control? (n) >>> hwmon2/device/pwm2 >>> hwmon2/device/pwm2 is currently setup for automatic speed control. >>> In general, automatic mode is preferred over manual mode, as >>> it is more efficient and it reacts faster. Are you sure that >>> you want to setup this output for manual control? (n) >>> hwmon2/device/pwm3 >>> hwmon2/device/pwm3 is currently setup for automatic speed control. >>> In general, automatic mode is preferred over manual mode, as >>> it is more efficient and it reacts faster. Are you sure that >>> you want to setup this output for manual control? (n) >>> There are no usable PWM outputs. >> >> OK, I'll change pwmconfig to complain if run as non-root. >> >>>> (...) >>>> Note that all 3 fan controllers are in automatic mode (pwm#_enable > >>>> 1), which is less CPU-intensive than manual mode and usually gives >>>> better results. So you might now want to use pwmconfig and fancontrol >>>> anyway, but rather tweak the automatic mode settings by writing to the >>>> pwm#_auto_point# files above. >>>> >>>> I admit the current configuration is a little odd. Usually point2 has >>>> pwm and temperature values above point1, not below. I am not familiar >>>> with the Fintek F71862FG and its driver though. Hans? >>> I am unable to write to the files. >>> >>> nelis at nelis-desktop:/sys/class/hwmon/hwmon2/device$ sudo echo "0" > >>> pwm1_enable >>> -bash: pwm1_enable: Permission denied >> >> Never mix sudo and shell redirection, it doesn't work. Redirection >> "happens first" so you try to write as non-root, and this isn't allowed. >> >>> So i guess temp3 is cpu temp and temp1 is motherboard temp. >> >> Or the other way around, it's hard to tell. Maybe looking at what the >> BIOS displays will provide valuable hints. I certainly hope temp2 isn't >> real... >> >>> But can't change that either. >>> >>> nelis at nelis-desktop:/sys/class/hwmon/hwmon2/device$ sudo echo "3" > >>> pwm1_auto_channels_temp >>> -bash: pwm1_auto_channels_temp: Permission denied >> >> Same problem as above. Use su instead of sudo. Or maybe sudo sh -c ... >> > root at nelis-desktop:/sys/class/hwmon/hwmon2/device# echo "0" > pwm1_enable > bash: echo: write error: Invalid argument Take a look at Documents/hwmon/f71882fg for which values are allowed, with your chip only 1 (manual mode) and 2 (auto mode) are supported, 0 == pwm disabled (fans full speed) is not supported. > root at nelis-desktop:/sys/class/hwmon/hwmon2/device# echo "3" > > pwm1_auto_channels_temp > bash: echo: write error: Invalid argument > The pwm#_auto_channels_temp attributes are a bitmap, you are now asking for both temp1 and temp2 to influence pwm1, the chip cannot handle this, you need to choose one. Regards, Hans
