GeForce 8200M G Linux Lite 3.8

[Valtam]

See the end of this thread- https://forums.linuxmint.com/viewtopic.php?t=213912 looks like the 304 version is better for your card.
Make sure you uninstall the nVidia driver you are using now. Reboot then do:

Code:

sudo apt-get install nvidia-304

But you say you have already tried it so...tricky.

You could try:

Code:

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
sudo apt-get install nvidia-current

Again, make sure you uninstall the nVidia driver you are using now. Reboot, then try the above.