hi
when I compile a package, my laptop temperature and fan speed as well as cpu and ram consumption increases. I think it's pretty normal. but I wonder even after package installation, laptop dose not back to the previous situation and temperature and fan speed is still high until I reboot the system.
my laptop is an Asus k45vm (core 17, 6GB ram, dual intel and nvidia GPU). I have blacklisted nouveau by installing xf86-nouveau-blacklist from "extra" folder.

This is normal. You need to provide more information though if you expect to receive any input.

• What package(s) are you compiling?
• What are the compile flags?
• What other conditions are present besides the compilation and the overheating?
• Are you doing anything else besides what you have mentioned?
• What other information might be relevant?

At least on my AMD systems the performance CPU governor is active by default. It can help to put the CPU on the 'on demand' governor. Then it will use the CPU's governors to scale the CPU speed and voltage depending on how heavily it's used. After a compile it will immediately clock down and lower the voltage. The CPU will cool down a lot faster this way.

I compiled my a kernel from source and included the specific processor and cpu frequency scaling set appropriately. Upon reboot I immediately noticed a big difference in my compile times and even a shorter boot time for my system. I also had some over heating prior to using a rebuilt kernel and that went away as well. I am sure though that there is a way to have the cpu freq scaling be adjusted without a kernel recompile while still using the generic Slackware kernel.

this happens for all slackbuilds, not a specific one. normally I don't edit slackbuilds and normally I do nothing during compilation process.

You can indeed switch governors. It's explained here:

http://www.linuxquestions.org/questi...em-4175434592/

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sorry, I was a little confused. from that link I find out I must load the governor module by and then is this true?

that will only set it for the first core

i do

another thing are the acpi C states, where the cpu drops frequency/voltage and can even turn off cores (in C2)
you can set it in BIOS/UEFI under some power-saving name

PS
i remember seeing something about a bug in kernel 3.18 pstate (the intel ondemand, SandyBridge and newer)
maybe google about it

PPS also you can turn off "turbo boost" to keep the heat in check

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This is helpful as well: http://docs.slackware.com/howtos:har...quency_scaling

I was trying to remember why I set mine to conservative when I compiled my kernel. I have a laptop, Dell Inspiron N4010.

Look for the string CPUFREQ in the file /etc/rc.d/rc.modules and read the following comments. Setting CPUFREQ to "on" will result in the ondemand governor to be used by default. The comments in /etc/rc.d/rc.modules tell you how to change that.

Hi. If you run top after you're done building/installing the package, do you see any CPU guzzlers running?

ok, I checked cpu frequency and scaling by cpufreq-info and xfce4-cpufreq-plugin, only performance and powersave governor are loaded and the default governor is powersave.
I don't think powersave is the reason behind laptop heating as it tends to keep cpu frequency in minimum. anyway I noticed all 8 cores have been configured to have middle frequency (above 2 GHZ) rather than minimum (under 2 GHZ).

I didn't find anything like this in Bios

I have done this already and found nothing abnormal. anyway I will check it again.

Please keep in mind that for Sandybridge+ CPUs you use the new intel_p state driver and this laptop is one of those I think. Those CPU's do not support the ondemand governor and hence it isn't possible to use that one. Powersave is the default one to use if I remember correctly.

edit) This should work correctly with the stock Slackware kernel without any tweaking to kernel-config options needed. Are you not just being impatient? The CPU generates a lot of heat during a compile, it takes time for the system to cool down to normal operation temperatures afterwards. In particular on a very compact laptop that is prone to become very hot.

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Just a note, but if you use an Nvidia chipset for graphics, the proprietary driver from Nvidia can have better fan and cooling support for certain graphics cards and laptops that have variable fan speed controls.

Wrong I have this cpu and all governors work all right with cpufreq.

Intel pstate is new driver for Intel CPU's and it is an enhancement and works better.