NVIDIA SETTINGS WITH GTX 590. UNABLE TO ADJUST FAN SPEED MANUALLY

Graphics / Linux Linux
1

Running nvidia driver 304.84

using:

paul@Paul-BluePC:~$ sudo nvidia-settings -a “[gpu:1]/GPUFanControlState=1”

paul@Paul-BluePC:~$ sudo nvidia-settings -a “[fan:1]/GPUCurrentFanSpeed=100”

ERROR: Error assigning value 100 to attribute ‘GPUCurrentFanSpeed’
(Paul-BluePC:0[fan:1]) as specified in assignment
‘[fan:1]/GPUCurrentFanSpeed=100’ (Unknown Error).

results in failure for any value X. The problem seems to stem from the fact that the fan controls are located on the [gpu:1] interface:

paul@Paul-BluePC:~$ nvidia-settings -q all | grep GPUCurrentFanSpeed
Attribute ‘GPUCurrentFanSpeed’ (Paul-BluePC:0[fan:0]): 0.
The valid values for ‘GPUCurrentFanSpeed’ are in the range 0 - 100
‘GPUCurrentFanSpeed’ can use the following target types: Fan.
Attribute ‘GPUCurrentFanSpeed’ (Paul-BluePC:0[fan:1]): 40.
The valid values for ‘GPUCurrentFanSpeed’ are in the range 0 - 100
‘GPUCurrentFanSpeed’ can use the following target types: Fan.

But that the “GPUFanControlState” key only exists on the [gpu:0] interface.

For example, if I do:

paul@Paul-BluePC:~$ sudo nvidia-settings -a “[gpu:0]/GPUFanControlState=1”

Attribute ‘GPUFanControlState’ (Paul-BluePC:0[gpu:0]) assigned value 1.

paul@Paul-BluePC:~$ sudo nvidia-settings -a “[fan:0]/GPUCurrentFanSpeed=100”

Attribute ‘GPUCurrentFanSpeed’ (Paul-BluePC:0[fan:0]) assigned value 100.

Then it “succeeds” although this does nothing to change the physical fan speed, since the controls should really be located on [gpu:1], not [gpu:0].

That is, from above:

paul@Paul-BluePC:~$ sudo nvidia-settings -a “[gpu:1]/GPUFanControlState=1”

simply doesn’t exist to change in the first place. So it is “perma-set” to:

[gpu:1]/GPUFanControlState=0

all the time, and thus I get the (unknown error), which is exactly what happens if I set [gpu:0]/GPUFanControlState=0 and then try to change the fan speed on [fan:0].

That is:

paul@Paul-BluePC:~$ nvidia-settings -q all | grep GPUFanControlState
Attribute ‘GPUFanControlState’ (Paul-BluePC:0[gpu:0]): 1.
‘GPUFanControlState’ is a boolean attribute; valid values are: 1 (on/true)
‘GPUFanControlState’ can use the following target types: GPU.

Suggests there is no [gpu:1] equivalent to the above to change. This seems to be the problem.

Any thoughts?

2

GTX 590 is a Gemini sku so it has two gpus on one board with only one fan. As you observed, you can manually set the fan speed % for the fan with the gpu the gpu that is responsible for it. The other one cannot be used for fan speed setting. This is expected behavior on Gemini boards.

3

Thanks for the reply.

Yes, this is true, but the problem is that the fan controls are attached to the wrong GPU. That is, you CANNOT change the fan because the control “GPUFanControlState” is associated with the wrong GPU!