Ubuntu
acpi package

Overheating

Asked by iraklis

I have a Toshiba L500-128 laptop with Ubuntu 12.04 64 bit OS , the only problem i have is the overheating of my cpu , with temperatures from 70 to 90 C . I think that this is related to the usage of the cpu fan . How can i fix it ?

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N1ck 7h0m4d4k15
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N1ck 7h0m4d4k15 (nicktux) said : 		#1

Hi iraklis ,

please open a terminal (CTRL+ALT+T) and issue the following commands (one by one)

    lspci -nnk | grep -iA2 vga
    lsb_release -rcd ; uname -r
    sensors

Post back here full results.

Regards
 NikTh

Revision history for this message
iraklis (kountouratzis) said : 		#2

VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4500/5100 Series] [1002:9553]
 Subsystem: Toshiba America Info Systems Device [1179:ff80]
 Kernel driver in use: radeon

Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
3.5.0-27-generic

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +82.0°C (high = +90.0°C, crit = +90.0°C)
Core 1: +83.0°C (high = +90.0°C, crit = +90.0°C)

Revision history for this message
iraklis (kountouratzis) said : 		#3

VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI
RV710 [Mobility Radeon HD 4500/5100 Series] [1002:9553]
 Subsystem: Toshiba America Info Systems Device [1179:ff80]
 Kernel driver in use: radeon

Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
3.5.0-27-generic

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +82.0°C (high = +90.0°C, crit = +90.0°C)
Core 1: +83.0°C (high = +90.0°C, crit = +90.0°C)

2013/4/10 NikTh <email address hidden>

> Your question #226399 on acpi in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/acpi/+question/226399
>
> Status: Open => Needs information
>
> NikTh requested more information:
> Hi iraklis ,
>
> please open a terminal (CTRL+ALT+T) and issue the following commands
> (one by one)
>
> lspci -nnk | grep -iA2 vga
> lsb_release -rcd ; uname -r
> sensors
>
> Post back here full results.
>
> Regards
> NikTh
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+source/acpi/+question/226399
>
> You received this question notification because you asked the question.
>

Revision history for this message
iraklis (kountouratzis) said : 		#4

the laptop becomes very hot during video playback from web (you tube e.t.c.)

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#5

Sounds like you need to use the legacy fglrx as you have one of the GPUs in the affected range. It is a known issue.
https://launchpad.net/~makson96/+archive/fglrx

Revision history for this message
Best N1ck 7h0m4d4k15 (nicktux) said : 		#6

Try the following commands (one by one)

    sudo -i
    echo low > /sys/class/drm/card0/device/power_profile
    exit

Wait for 10-15 secs and the check again the sensors

    sensors

If the temperature decreased , then we can do this command persistent by adding it to /etc/rc.local

   gksudo /etc/rc.local

 and BEFORE exit 0 add the command

    (sleep 15 ; echo low > /sys/class/drm/card0/device/power_profile) &

Then save the file and reboot and should be OK.

Regards
 NikTh

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#7

Or:

echo low | sudo tee /sys/class/drm/card0/device/power_profile

Bit simpler

Revision history for this message
iraklis (kountouratzis) said : 		#8

Thanks a lot Nick and Andrew ,
now my laptop is from 10 to 20 C cooler !!!!

Revision history for this message
N1ck 7h0m4d4k15 (nicktux) said : 		#9

Please mark the answer that solved your question by clicking on button "This solved my question". For future - help - others with same problem.

Regards
 NikTh

Revision history for this message
iraklis (kountouratzis) said : 		#10

Thanks NikTh, that solved my question.