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Thread: Toshiba Laptop U500 running hot

  1. #11
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    Xubuntu 14.04 Trusty Tahr

    Re: Toshiba Laptop U500 running hot

    Hi, thanks for the tip.
    I do wonder, as the machine started to get hot after an upgrade through apt. I guess there is a lib file out there that makes it hot. I am using ACPI off, which means, in my understanding that linux is not involved in the temperature control, the BIOS manages it by itself. So I do not understand, how an upper layer SW can block the BIOS from managing.
    I am not using my laptop for that advanced graphics, just Compiz and cube, and I have not noticed any benefit with fglrx driver.

  2. #12
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    Jul 2008
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    London, UK
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    Re: Toshiba Laptop U500 running hot

    The following commands fixed this issue for me on a Toshiba Satellite U500:

    Code:
    $ sudo -i
    # echo 0 > /proc/acpi/thermal_zone/TM0/cooling_mode
    This command sets the cooling mode of the device onto active cooling.

    Code:
    # echo 0 > /proc/acpi/fan/FAN0/state
    Adding these echo statements before the exit 0 in /etc/rc.local made the change permanent.

    I have added this to https://bugs.launchpad.net/bugs/572528
    Last edited by jpds; July 9th, 2010 at 04:56 PM.

  3. #13
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    Re: Toshiba Laptop U500 running hot

    Thank you for the tip.
    Just a clarification, do you use ACPI off in grub or not, when you use these commands?

  4. #14
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    Re: Toshiba Laptop U500 running hot

    Quote Originally Posted by reef2dive View Post
    Thank you for the tip.
    Just a clarification, do you use ACPI off in grub or not, when you use these commands?
    I did not make any changes to the ACPI settings in the kernel line.

  5. #15
    Join Date
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    Xubuntu 14.04 Trusty Tahr

    Re: Toshiba Laptop U500 running hot

    In the setup there is this directory
    Code:
    # /proc/acpi/thermal_zone/TZ0$
    is there any difference between TZ0 and TM0?

    When issuing cat
    Code:
    # /proc/acpi/thermal_zone/TZ0$ cat cooling_mode 
    0 - Active; 1 - Passive
    I assume that this means it is not activiated as acpi=off is used in grub

    When issuing cat
    Code:
    # /proc/acpi/fan/FAN0$ cat state
    status:                  on
    What does the 0 represent in
    Code:
    # echo 0 > /proc/acpi/fan/FAN0/state
    , on or off?

  6. #16
    Join Date
    Sep 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: Toshiba Laptop U500 running hot

    That worked for me! Thanks so much.

  7. #17
    Join Date
    Sep 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: Toshiba Laptop U500 running hot

    This worked for me, running Toshiba Satellite A305

    Quote Originally Posted by jpds View Post
    The following commands fixed this issue for me on a Toshiba Satellite U500:

    Code:
    $ sudo -i
    # echo 0 > /proc/acpi/thermal_zone/TM0/cooling_mode
    This command sets the cooling mode of the device onto active cooling.

    Code:
    # echo 0 > /proc/acpi/fan/FAN0/state
    Adding these echo statements before the exit 0 in /etc/rc.local made the change permanent.

    I have added this to https://bugs.launchpad.net/bugs/572528

  8. #18
    Join Date
    Aug 2010
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    4

    Talking Re: Toshiba Laptop U500 running hot

    Hi

    i tried to fix the DSDT on the toshiba U500
    there was mistakes in fanX status methods so they always return ON

    here are the dsdt files, if somebody can try on ubuntu ( i did on debian (i had to recompile kernel) )

    now fan's levels turn on and off according to their trip points and i can monitor this with yacpi tool

    hope it will help

    edit: files here u500-dsdt.zip
    Last edited by vanoven; November 5th, 2010 at 10:51 PM.

  9. #19
    Join Date
    Mar 2006
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    Xubuntu 14.04 Trusty Tahr

    Re: Toshiba Laptop U500 running hot

    Thank you. I will try to use them.
    (I need to check how to use them first.)
    Probably I will have a result in 2 weeks.

  10. #20
    Join Date
    Feb 2008
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    Xubuntu

    Re: Toshiba Laptop U500 running hot

    Okay, I am running a brand new Toshiba Satellite Pro L510 and this what worked for me. At boot, edit the kernel line to read:

    Code:
     acpi=copy_dsdt
    NOT:

    Code:
     acpi=off
    If it works, make it permanent in /etc/default/grub.

    If you are still having heating issues, check this page:

    http://ubuntuforums.org/showthread.php?p=5031046

    I really wouldn't bother screwing around with anything else; you may just make a mess you need to fix on top of what you have. This is ALL to do with your 'acpi=?' setting one would think. Checking thermal monitors ain't gonna fix anything but will only confirm what you already know: The machine is running too hot.

    Last edited by Bucky Ball; November 7th, 2010 at 08:08 AM.

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