2nd Threshold?

[slsnow]

It might be nice if there were an intermediate threshold as well. For example, I have mine set at 25% fan speed, which is fine most of the time. However, occasionally when the load increases, it will jump to the BIOS setting, and be running at like 93% for a bit until it cools down.

I'd prefer to have at least one more threshold, as an option. When it hits that 2nd threshold, perhaps I'd set the fan to go up 45% or 50% instead of the BIOS settings. Then, if it hits my current threshold, it would kick over to the BIOS like normal.

Hopefully that makes sense, and I know that if you could have 2, then people could request 3, 4, or 5. Hopefully people wouldn't ask for that, but I think that 2 would be sufficient for me.

Either way, thanks a ton. This has been the best solution I've found.

[tigerblue77]

Hey, why not but it would need some more code and I don't have much time actually. It will also need a second FAN_SPEED environment variable. By idea would be more like :

• lowest speed :
  • user defined speed
  • default mode when < 1st threshold
• middle speed :
  • user defined speed, must be > lowest speed
  • mode when > 1st threshold and < lm-sensors high CPU temperature
• high speed (security mode) :
  • Dell default fan control profile
  • mode when > lm-sensors critical CPU temperature

So that no 2nd threshold would be needed and it would (should) fit any CPU configuration.

[slsnow]

Yeah, that sounds perfect.

[macj72x]

I would love to see this as well. If possible adding a few thresholds and making this more variable would be great.

[ThatCoffeeGuy]

I would love to see this. if I have the time, I will try to put it together and commit for review.

[zepanv]

Having another step would be nice or even a curve that could be calculated based on the FAN_SPEED variable, it would still require a second variable but it could work something like:
FAN_SPEED = 10
CPU_TEMPERATURE_THRESHOLD = 50 (default to bios)
SCALING_CPU_TEMPERATURE = 45

So it will run at 10% until it hits 45 degrees, then it will increment fan speed to try to bring it down before it hits the threshold of 50 and goes full blast.
Could even increment it by FAN_SPEED so at 45 it will go to 20, then next CHECK_INTERVAL if it is still above 45 it would keep adding FAN_SPEED until it either went under 45 or hit 50 and defaulted as normal.

[norahqueen]

I had a go at creating a pull request for this.

[7Adrian]

Hi, I created pull request for that upgrade. I used line interpolation in my solution. You can check it in #60.

Quick example how my solution work:

• ENABLE_LINE_INTERPOLATION = true
• FAN_SPEED = 10
• HIGH_FAN_SPEED = 50
• CPU_TEMPERATURE_FOR_START_LINE_INTERPOLATION = 30
• CPU_TEMPERATURE_THRESHOLD = 70

CPU Temperature	Fan Speed
15 °C	10 %
30 °C	10 %
35 °C	15 %
50 °C	30 %
69 °C	49 %
70 °C	Dell fan control