fan control issues on Toshiba Satellite c655d-s5136

On Ubuntu 14.04, my fan always runs,even when idle. This is not the case when I am in Win7,in which it only runs when I am playing movies.

This bothers me greatly and I have followed other threads related to my question and followed the advice given.

So I will now output results from some tools that were suggested in related threads so that maybe an advanced user might provide more insight.

Running sensors detect -u gives me the following installed module:

 k10temp AMD Family 10h+ CPU core temperature monitor 

Running modinfo k10temp gives:

filename: /lib/modules/3.13.0-43-generic/kernel/drivers/hwmon/k10temp.ko license: GPL author: Clemens Ladisch <> description: AMD Family 10h+ CPU core temperature monitor srcversion: A1B9F52D7E334F02B5B36C3 alias: pci:v00001022d00001533sv*sd*bc*sc*i* alias: pci:v00001022d0000141Dsv*sd*bc*sc*i* alias: pci:v00001022d00001403sv*sd*bc*sc*i* alias: pci:v00001022d00001603sv*sd*bc*sc*i* alias: pci:v00001022d00001703sv*sd*bc*sc*i* alias: pci:v00001022d00001303sv*sd*bc*sc*i* alias: pci:v00001022d00001203sv*sd*bc*sc*i* depends: intree: Y vermagic: 3.13.0-43-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: 55:AB:2F:E2:8E:D5:C6:0D:F9:58:71:50:D1:73:4C:92:0E:A7:B8:18 sig_hashalgo: sha512 parm: force:force loading on processors with erratum 319 (bool) 

however, lsmod | grep k10 gives:

k10temp 13126 0 

I don't get why the 'used by' column is zero...

I used ftws fan - to get the following output:

Test: Simple fan tests. : 0.0% / Test fan status. : 0.0% - Test fan status. : 50.0% \ Test fan status. 4 passed Load system, check CPU fan status. : 50.0% | Load system, check CPU fan status. : 100.0% / Load system, check CPU fan status. Running 1 tests, results appended to results.log SSED: Test 1, Fan cooling_device2 of type Processor has max cooling state 3 and current cooling state 0. PASSED: Test 1, Fan cooling_device3 of type LCD has max cooling state 7 and current cooling state 0. Test 2 of 2: Load system, check CPU fan status. Test how many fans there are in the system. Check for the current status of the fan(s). Loading CPUs for 20 seconds to try and get fan speeds to change. Fan cooling_device1 current state did not change from value 0 while CPUs were busy. Fan cooling_device2 current state did not change from value 0 while CPUs were busy. ADVICE: Did not detect any change in the CPU related thermal cooling device states. It could be that the devices are returning static information back to the driver and/or the fan speed is automatically being controlled by firmware using System Management Mode in which case the kernel interfaces being examined may not work anyway. ================================================================================ 4 passed, 0 failed, 0 warning, 0 aborted, 0 skipped, 0 info only. ================================================================================ 4 passed, 0 failed, 0 warning, 0 aborted, 0 skipped, 0 info only. Test Failure Summary ================================================================================ Critical failures: NONE High failures: NONE Medium failures: NONE Low failures: NONE Other failures: NONE Test |Pass |Fail |Abort|Warn |Skip |Info | ---------------+-----+-----+-----+-----+-----+-----+ fan | 4| | | | | | ---------------+-----+-----+-----+-----+-----+-----+ Total: | 4| 0| 0| 0| 0| 0| ---------------+-----+-----+-----+-----+-----+-----+ 

Running sensors -u gives:

acpitz-virtual-0 Adapter: Virtual device temp1: temp1_input: 49.000 temp1_crit: 105.000 k10temp-pci-00c3 Adapter: PCI adapter temp1: temp1_input: 50.000 temp1_max: 70.000 temp1_crit: 109.500 temp1_crit_hyst: 104.500 

then I ran pwmconfig which tells me:

/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed 

So I don't know where to go now. Can I control my fan? If yes, how?

1 Answer

found out f2 on booting advanced options there is a option to turn off cpu speed control then after disabled the problem disappeared. fan speed keeps stable, but you better check the temperature by putting your hand on the laptop, for internet it is working fine right now.