enable nVidia CoolBits (frequency tuner)
In order to enable CoolBits extension with accelerated 3D ‘nvidia’ nVidia drivers you have to edit file /etc/X11/xorg.conf
sudo gedit /etc/X11/xorg.conf
and in section
Section “Screen”
Identifier “Screen0″
…
add this string
Option “Coolbits” “1″
then save.
You will then have a ‘Clock Frequencies’ tab in nvidia-settings applet.
There you will be able to tweak your graphics card chipset and memory frequencies.
NOTE: to make changes persistent you have to run nvidia-settings with root privileges, thus you have to run it with sudo or gksu as follows: in the terminal shell ’sudo nvidia-settings’ or in ATL+F2 dialog box ‘gksu nvidia-settings’. (thanks Grumpy for highlighting this)
Beware overclocking is not possible, and nor advisable, with mobile graphics cards, instead you could consider downclocking the video card in order to save more energy and cool down your laptop.
Please refer also to my article about PowerMizer, which is a dynamic frequency changing feature for minimize energy consumption and heat production at zero performance costs!
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hi there.
I tried your howto but I have one problem: the frequencies do nto get applied at reboot
All I want to do, is downclock my graphiccard, as it gets pretty hot and I am not a big gamer,so most of the time I don’t need it running full speed….
I lower the frequencies, all seems well, but after a restart, frequencies are back to normal values
any ideas what could be wrong?
You need to run the config as root (sudo nvidia-settings) to make any changes stick. running from the menu link will only let you see the information, not actually alter it.
tried that: executed as root, set the frequencies of 3d down, applied, quit, executed as root again, and the frequencies were back to normal
Спасибочки! Буду теперь заходить на этот блог почаще!