Ticket #2340 (closed defect: fixed)

Opened 6 years ago

Last modified 5 years ago

pwconfig test to detect the pwm to start or to stop

Reported by: ticket Owned by: khali
Priority: major Milestone: 2.10.8
Component: fancontrol Version: 2.10.5
Keywords: Cc: epistemepromeneur@…

Description (last modified by khali) (diff)


i use
Asus K8N
linux mandriva 2008.1
lm-sensors 2.10.5
pwconfig 0.8

i try to control the cpu temperature

i launch pwconfig
it see swell the fan input, fan ouput
it can stop, increase the fan speed
then make a correlation

Testing pwm control hwmon1/device/pwm1 ...
  hwmon1/device/fan1_input ... speed was 2973 now 0
    It appears that fan hwmon1/device/fan1_input
    is controlled by pwm hwmon1/device/pwm1
Would you like to generate a detailed correlation (y)? y
    PWM 255 FAN 2947
    PWM 240 FAN 2789
    PWM 225 FAN 0
    Fan Stopped at PWM = 225

it finds the temperature output
i ask to create the fancontrol config file
i reach the step to determine the minimum value to start the fan

Enter the minimum PWM value (0-255)
at which the fan STARTS spinning (press t to test) (150): t

Now we increase the PWM value in 10-unit-steps.
Let the fan stop completely, then press return until the
fan starts spinning. Then enter 'y'.
We will use this value +20 as the starting speed.
Setting hwmon1/device/pwm1 to 10...
Setting hwmon1/device/pwm1 to 20...

the fan never stops
i cannot find the minimum value to start the fan

Same pb to determine the minimum value to stop the fan

thanks in advance

Change History

Changed 6 years ago by khali

  • owner changed from somebody to khali
  • status changed from new to assigned
  • version set to 2.10.5
  • description modified (diff)
  • milestone set to 2.10.8

Changed 6 years ago by khali

Fixed in r5319 (r5318 for lm-sensors 3). Please test pwmconfig from either lm-sensors 3.0.3 or SVN, it should work fine now.

Changed 6 years ago by khali

I forgot to mention: apparently you have your fan clock divisor set to 2, which prevents measuring fan speeds below approximately 2700 RPM. If you intend to use fancontrol, then you should first increase the fan_div value to 4 or even 8, so that you can measure low fan speeds.

Changed 5 years ago by khali

Can you please test and confirm that it works OK now? I would like to close this ticket now.

Changed 5 years ago by khali

  • status changed from assigned to closed
  • resolution set to fixed

No feedback so I'll just assume it is OK.

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