Nouveau - Jul 2013 - GeForce 8800GT fan control

I have a GeForce 8800GT that I am trying to lower the fan speed on.
I can change the fan RPM from high to not-as-high but I want more control over
it.
It is too loud and it was quieter with the blob.
Maybe the temps are too high to make it quieter.


# echo 1
>/sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0/i2c-6/6-002e/pwm1_enable
# sensors
fam15h_power-pci-00c4
Adapter: PCI adapter
power1:       89.28 W  (crit =  95.01 W)

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +32.4 C  (high = +70.0 C)
                       (crit = +70.0 C, hyst = +67.0 C)

adt7473-i2c-6-2e
Adapter: nouveau-0000:01:00.0-2
in1:          +3.00 V  (min =  +0.00 V, max =  +2.99 V)
+3.3V:        +3.27 V  (min =  +0.00 V, max =  +4.39 V)
fan1:        5708 RPM  (min =    0 RPM)
fan2:           0 RPM  (min =    0 RPM)
fan3:           0 RPM  (min =  164 RPM)  ALARM
temp1:        +62.0 C  (low  = +80.0 C, high = +100.0 C)  ALARM
                       (crit = +100.0 C, hyst = +98.0 C)
Board Temp:   +55.0 C  (low  = +20.0 C, high = +60.0 C)
                       (crit = +100.0 C, hyst = +96.0 C)
temp3:        +61.8 C  (low  = +80.0 C, high = +105.0 C)  ALARM
                       (crit = +136.0 C, hyst = +132.0 C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:         +0.0 C  (high = +95.0 C, hyst =  +3.0 C)
                       (crit = +100.0 C, hyst =  +5.0 C)
                       (emerg = +135.0 C, hyst =  +5.0 C)


# echo 2
>/sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0/i2c-6/6-002e/pwm1_enable
# sensors
fam15h_power-pci-00c4
Adapter: PCI adapter
power1:       99.08 W  (crit =  95.01 W)

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +32.9 C  (high = +70.0 C)
                       (crit = +70.0 C, hyst = +67.0 C)

adt7473-i2c-6-2e
Adapter: nouveau-0000:01:00.0-2
in1:          +3.00 V  (min =  +0.00 V, max =  +2.99 V)
+3.3V:        +3.27 V  (min =  +0.00 V, max =  +4.39 V)
fan1:        4376 RPM  (min =    0 RPM)
fan2:           0 RPM  (min =    0 RPM)
fan3:           0 RPM  (min =  164 RPM)  ALARM
temp1:        +62.2 C  (low  = +80.0 C, high = +100.0 C)  ALARM
                       (crit = +100.0 C, hyst = +98.0 C)
Board Temp:   +55.0 C  (low  = +20.0 C, high = +60.0 C)
                       (crit = +100.0 C, hyst = +96.0 C)
temp3:        +62.2 C  (low  = +80.0 C, high = +105.0 C)  ALARM
                       (crit = +136.0 C, hyst = +132.0 C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:         +0.0 C  (high = +95.0 C, hyst =  +3.0 C)
                       (crit = +100.0 C, hyst =  +5.0 C)
                       (emerg = +135.0 C, hyst =  +5.0 C)


# echo 3
>/sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0/i2c-6/6-002e/pwm1_enable
bash: echo: write error: Invalid argument

On 27/07/2013 13:22, James wrote:
> I have a GeForce 8800GT that I am trying to lower the fan speed on.
> I can change the fan RPM from high to not-as-high but I want more control
over it.
> It is too loud and it was quieter with the blob.
> Maybe the temps are too high to make it quieter
Hi James,

Your GPU uses the adt7473 to regulate the fan speed. I would advise you 
to use it in order to drive the fan speed.
Changing Nouveau's fan management mode won't help because the lm sensors
guys forbid kernel-side access to the
methods of i2c devices. This forbids Nouveau to be the central location 
to drive the fan.

If you, like me, think this is stupid and should be fixed, please be 
aware that we tried but the lack of will on the lmsensors
camp is a real issue.

Good luck using the adt7473!

Martin