Program to change GPU clock in Ubuntu?

[CoreCombat]

I installed Ubuntu on my old laptop to give my cousin. The GPU is a GT 105m. Ive been facing overheating problem, and i use Afterburner to underclock it in windows. But I couldn't find any software that can do that in Ubuntu. Also my cousin doesn't know a lot about tech, he's just using this to watch youtube and playing minecraft so underclocking wouldnt effect the performace a lot. What program should I use? Thanks 

[Willowwizard]

Honestly, I think the best solution here is to open the laptop and clean the heatsink & apply new thermal paste, or at the very least take a vacuum or air duster and remove the dust from the heatsink.

 

To answer your question though, you can modify the clock speed of your GPU if you're using the NVIDIA blob driver.

Open a terminal and run nvidia-xconfig --cool-bits=5 as root, restart your computer and you should be able to modify the clock speed and fan speed from nvidia-settings.

Note: If you want to over/underclock a newer graphics card made later than 2010, do nvidia-xconfig --cool-bits=12 as root instead.

 

If you're using nouveau, as far as I know modifying the clock speed isn't supported yet, at least not without patching the driver.