as you can see here in screenshot the nvidia x server settings program is installed but when i click it, simple nothing happens... this is a very strange problem..
I want to connect my laptop with hdmi and with a quick search on google i must do it with that program...Any ideas?
Install nvidia-settings from Software Center:
Or run in Terminal:
It fixed my problem!
sudo apt-get install nvidia-settings-319-updates
solved my problem (I installed nvidia driver 319).