* - MSI P41T-C31 ( http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=1792 )
After f71882fg module loaded - it creates bunch of the sysfs entries, and i can succesfully read temperature and fan speed values from it. But i can't control the pwm with it.
I tried pwmconfig utility as well as writing to sysfs files directly. sysfs values get changed, but actual fan speed does not.
************* dmesg ************
[ 14.238796] f71882fg: Found f71889fg chip at 0xa00, revision 21
[ 14.238935] f71882fg f71882fg.2560: Fan: 1 is in duty-cycle mode
[ 14.238936] f71882fg f71882fg.2560: Fan: 2 is in duty-cycle mode
[ 14.238938] f71882fg f71882fg.2560: Fan: 3 is in duty-cycle mode
*********************** sensors *********************
linux-md9k:/sys/class/hwmon # sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +39.0°C (high = +76.0°C, crit = +100.0°C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +38.0°C (high = +76.0°C, crit = +100.0°C)
f71889fg-isa-0a00
Adapter: ISA adapter
in0: +1.69 V
in1: +1.08 V (max = +2.04 V)
in2: +1.10 V
in3: +0.96 V
in4: +0.02 V
in5: +0.02 V
in6: +0.01 V
in7: +1.69 V
in8: +1.62 V
fan1: 0 RPM ALARM
fan2: 0 RPM ALARM
fan3: 1538 RPM
temp1: +18.0°C (high = +255.0°C, hyst = +251.0°C)
(crit = +255.0°C, hyst = +251.0°C) sensor = Intel PECI
temp2: +33.0°C (high = +255.0°C, hyst = +251.0°C)
(crit = +109.0°C, hyst = +105.0°C) sensor = thermistor
temp3: +33.0°C (high = +255.0°C, hyst = +253.0°C)
(crit = +255.0°C, hyst = +253.0°C) sensor = transistor
**************** trying manual control ************
linux-md9k:/sys/class/hwmon # cat hwmon2/device/pwm3_enable
1
linux-md9k:/sys/class/hwmon # cat hwmon2/device/pwm3
255
linux-md9k:/sys/class/hwmon # echo 140 > hwmon2/device/pwm3
linux-md9k:/sys/class/hwmon # echo 0 > hwmon2/device/pwm3
linux-md9k:/sys/class/hwmon # cat hwmon2/device/pwm3
0
*********************************************************
Can somebody please help me debug this?
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