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My Laptop is a Lenovo G480 (20157) and came with Windows 8 pre-installed. I cleared it out and made Ubuntu 14.04 (LTS) my primary OS. Everything is awesome except the heating problem. My laptop burns like hell. I've got indicator-cpufreq and tlp but I don't think it's making any difference because I feel my laptop fan isn't working. Some relevant output:

$ tlp-stat -t
--- TLP 0.5 --------------------------------------------
+++ Temperatures
CPU temp               =    64 [°C]
/proc/acpi/ibm/fan     =     0 [/min]

$ sensors
Adapter: Virtual device
temp1:        +64.0°C  (crit = +88.0°C)
temp2:        +48.0°C  (crit = +126.0°C)
Adapter: ISA adapter
Physical id 0:  +65.0°C  (high = +72.0°C, crit = +90.0°C)
Core 0:         +65.0°C  (high = +72.0°C, crit = +90.0°C)
Core 1:         +61.0°C  (high = +72.0°C, crit = +90.0°C)
Adapter: ISA adapter
fan1:           0 RPM

There was a file in /proc/acpi/ibm called fan Before it was like:

status:     disabled
speed:      0
level:      0 

But I have now edited it to look like:

status:     enabled
speed:      0
level:      7
commands:   level <level> (<level> is 0-7, auto, disengaged, full-speed)
commands:   enable, disable
commands:   watchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))

The output of:- cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor is


I guess I can hear my fan running.. Does anyone have any more suggestions?

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closed as off-topic by Sylvain Pineau, Eliah Kagan, Warren Hill, muru, LnxSlck Sep 23 at 7:45

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This describes a problem that can't be reproduced that seemingly went away on its own or was only relevant to a very specific period of time. It's off-topic as it's unlikely to help future readers." – Sylvain Pineau, Warren Hill, LnxSlck
If this question can be reworded to fit the rules in the help center, please edit the question.

The temperatures are not like burning pc –  Creator Jul 20 at 15:54
Ya coz it goes upto 74/75 when i am normally using my pc... 64 was whan i just switched on and posted this question.. –  Niroj Bista Jul 20 at 15:58
okay that is quite serious I what is your hardware config is it Intel 3rd gen i5? –  Creator Jul 20 at 16:00
intel 3rd gen i3 –  Niroj Bista Jul 20 at 16:02
As I said, please edit your question to include this information. Also, please include the answer to my questions: can you hear the fan spinning at all? What's the output of cat /sys/devicessystem/cpu/cpu0/cpufreq/scaling_governor? Did you also try the ThinkPad Fan Control program I linked to? Does that make the fans work? –  terdon Jul 20 at 16:24

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