pwmconfic: error on test for fan START spinning pwm

Bug #366932 reported by Dirk Kraft on 2009-04-25
Affects Status Importance Assigned to Milestone
lm-sensors (Ubuntu)

Bug Description

Binary package hint: lm-sensors

When trying to measure the lowest pwm value for which the fan still starts the pwmconfig script is not able to set the pwm value.

Error message:
Setting hwmon0/device/pwm2 to 10.../usr/sbin/pwmconfig: line 583: hwmon0/device/pwm2: Permission denied

Since the script is able to set the pwm values during the detailed correlation test (earlier in the same run of the script) this is not a permission problem but rather a problem with the script.

When using the svn version from upstream ( instead configuration works without problems.

Full output of the script up to the error is attached.

Ubuntu 9.04
lm-sensors 1:3.0.2-2ubuntu4

Dirk Kraft (dirk-kraft) wrote :
tags: added: jaunty
Chuck Short (zulcss) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
1. Is this reproducible?
2. If so, what specific steps should we take to recreate this bug? Be as detailed as possible.
This will help us to find and resolve the problem.

Changed in lm-sensors (Ubuntu):
importance: Undecided → Low
status: New → Incomplete
Dirk Kraft (dirk-kraft) wrote :

1. I can still reproduce this on a jaunty system with a EPIA SN-18000G board (lm-sensors chip: sch311x-isa-0a70). Package version is still 1:3.0.2-2ubuntu4. The same version is in karmic why I won't bother to install karmic to test this.

I tried to see if I can get similar behavior on other machines and tried on my Asus eee. On this machine the pwmconfig script (from the lm-sensors package) is not even able to find the device. Using the version from upstream (see first post) detection as well as testing works fine.

2. Basically you run the script accepting the default answers until you get "Select fan output to configure, or other action". Select a device here (for example by pressing 1). Go on in the process. When you see "at which the fan STARTS spinning (press t to test)" press t. Now the error should occur. For a really step by step introduction look at the file I appended almost 6 months ago (Console output of the pwmconfig script). It shows all the inputs I entered as well as the program outputs.

Chuck Short (zulcss) on 2009-10-19
Changed in lm-sensors (Ubuntu):
status: Incomplete → Confirmed
Dirk Kraft (dirk-kraft) on 2013-10-18
Changed in lm-sensors (Ubuntu):
status: Confirmed → Invalid
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