Thinkpad T420 - Ubuntu Server 18.04

[danxtrate]

Hello,

Trying to control the fan speed for my T420, this is the output of the debug:

Looking for sensors

hwmon0 :

• name = acpitz
• temp1_crit = 98000
• temp1_input = 49000
• uevent =

hwmon1 :

• fan1_input = 3855
• name = thinkpad
• pwm1 = 255
• pwm1_enable = 2
• uevent =

hwmon2 :

• name = coretemp
• temp1_crit = 100000
• temp1_crit_alarm = 0
• temp1_input = 69000
• temp1_label = Package id 0
• temp1_max = 86000
• temp2_crit = 100000
• temp2_crit_alarm = 0
• temp2_input = 59000
• temp2_label = Core 0
• temp2_max = 86000
• temp3_crit = 100000
• temp3_crit_alarm = 0
• temp3_input = 67000
• temp3_label = Core 1
• temp3_max = 86000
• uevent = Unable to find any fan device Try to run sensors-detect