Toshiba Laptop U500 running hot

[reef2dive]

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.

[jpds]

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

$ sudo -i
# echo 0 > /proc/acpi/thermal_zone/TM0/cooling_mode

This command sets the cooling mode of the device onto active cooling.

# 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

[reef2dive]

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

[jpds]

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.

[reef2dive]

In the setup there is this directory

# /proc/acpi/thermal_zone/TZ0$

is there any difference between TZ0 and TM0?

When issuing cat

# /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

# /proc/acpi/fan/FAN0$ cat state
status:                  on

What does the 0 represent in

# echo 0 > /proc/acpi/fan/FAN0/state

, on or off?

[isachs]

That worked for me! Thanks so much.

[isachs]

This worked for me, running Toshiba Satellite A305

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

$ sudo -i
# echo 0 > /proc/acpi/thermal_zone/TM0/cooling_mode

This command sets the cooling mode of the device onto active cooling.

# 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

[vanoven]

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

[reef2dive]

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.

[Bucky Ball]

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:

 acpi=copy_dsdt

NOT:

 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.