firefox running hot on laptop Toshiba Satellite A-100
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# cpufreq-info
bash: cpufreq-info: command not found...
BTW, I may seem to be letting you do all the work. The truth is that I am a bit lost here. I am letting myself be guided by people who know more than I do. Please don't give up on me.
The "cpufrequtils" software package needs to be installed for better utilization of multiple cores if your CPU is having a multi-core processor (dual core, quad core). Otherwise only one CPU core will be running all the time and hence the performance drops and temperature increases very soon.
Which Linux Distro you are running?
If you are using a Debian based distribution like Debian itself or Ubuntu or Mint, install the "cpufrequtils" package using:
Quote:
sudo apt-get install cpufrequtils
After installing reboot the machine and check again.
The "cpufrequtils" software package needs to be installed for better utilization of multiple cores if your CPU is having a multi-core processor (dual core, quad core). Otherwise only one CPU core will be running all the time and hence the performance drops and temperature increases very soon.
Quote:
Originally Posted by dhruvats View Post
The "cpufrequtils" software package needs to be installed for better utilization of multiple cores if your CPU is having a multi-core processor (dual core, quad core). Otherwise only one CPU core will be running all the time and hence the performance drops and temperature increases very soon.
Excuse me? From where this came from?
Oops! Sorry about that, I was confused. Thanks for pointing that.
But "cpufrequtils" is needed for supporting CPU scaling i.e., it helps in stepping between the different CPU frequencies as per the scaling governor which is currently active:
Quote:
$ cpufreq-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 1000 MHz and 2.00 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.00 GHz.
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 1000 MHz and 2.00 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.00 GHz.
In this case, the CPU can step through 4 different frequencies starting from 1000MHz, 1.33GHz, 1.67GHz and finally the maximum of 2GHz.
So, without "cpufrequtils" the CPU will run at max freq of 2GHz even if it is not needed and hence the temp increases. Install this package and let us see if it resolves the problem.
---------- Post added 08-01-12 at 04:26 PM ----------
Quote:
Quote:
Originally Posted by dhruvats View Post
The "cpufrequtils" software package needs to be installed for better utilization of multiple cores if your CPU is having a multi-core processor (dual core, quad core). Otherwise only one CPU core will be running all the time and hence the performance drops and temperature increases very soon.
Excuse me? From where this came from?
Oops! Sorry about that, I was confused. Thanks for pointing that.
But "cpufrequtils" is needed for supporting CPU scaling i.e., it helps in stepping between the different CPU frequencies as per the scaling governor which is currently active:
Quote:
$ cpufreq-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 1000 MHz and 2.00 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.00 GHz.
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 1000 MHz and 2.00 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.00 GHz.
In this case, the CPU can step through 4 different frequencies starting from 1000MHz, 1.33GHz, 1.67GHz and finally the maximum of 2GHz.
So, without "cpufrequtils" the CPU will run at max freq of 2GHz even if it is not needed and hence the temp increases. Install this package and let us see if it resolves the problem.
$ cpupower frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.60 GHz
available frequency steps: 1.60 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
available cpufreq governors: conservative, userspace, powersave, ondemand, performance
current policy: frequency should be within 800 MHz and 1.60 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
boost state support:
Supported: no
Active: no
BTW, posting seems to have a problem with quoting whole posts and double posts
In Fedora 16, the kernel may be having the PCIE_ASPM disabled (This was the famous linux kernel power regression bug, search google -> phoronix, pcie_aspm). This results in higher power consumption.
Since the problem is with firefox, one thing to check is whether any FLASH content is being played or viewing websites with FLASH may also result in higher temperature.
Also, if any NVIDIA/ATI graphics card is present in your system, it is recommended to use the respective propreitary drivers. If possible, download the latest Linux Mint i.e., MAYA edition either with Cinnamon/MATE desktop and run in LiveCD mode to make sure that it is not a hardware problem or problem specific to Firefox in Fedora 16.
My laptop is partially disassembled on the kitchen table. I am cleaning it out.
There are these three little plastic clips that hold data ribbons. One longer, one medium and one short.
Does anyone know their names and how they are supposed to clip into place?
Pressure plate connectors
Normal pin connectors
According to the maintenance manual (google is my friend), those are the two kinds of connectors.
Everyone talks about the pressure plate connector for the keyboard, but I haven't found any info about the other three. (sigh)
BTW, the pressure plate connectors are for the cables coming from the touchpad, the touchpad buttons and the multimedia buttons on the left of the laptop.
Last edited by S. Chapelin; 08-04-2012 at 09:52 AM.
Reason: precision
Distribution: M$ Windows / Debian / Ubuntu / DSL / many others
Posts: 2,339
Rep:
I have a laptop that very often overheats.
I installed a utility called CPU scaling monitor and "underclock" it at 1GHz all the time to keep it from hitting 100c and shutting down.
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