I have an old laptop with a GeForce G 105M running ubuntu server without gui and the fan is always blowing because the GPU never goes under 60ºC with the computer completely idle! Is this normal or some kind of hardware malfunction?
Normally I would suggest ripping out the graphics card but that's usually not an option in laptops. It might be worth exploring though.
When you run a graphical environment, most users use the
When you're in the server mode the only graphics are the text-mode TTY displays. These won't use any real power but the graphics are active. You card is still going to be turned on and without the right driver it might be pulling more power than it actually needs.
I'm honestly not sure what's happening in Ubuntu server. I would assume
Here are two separate options for you. Try them separately and see what happens with fan speed and temperature: