unable to connect to xserver : Connection refused
 

I just replaced myvideo card and tried to install nvidia-smi to see performance and after reboot I receive the error message:

unable to connect to xserver : Connection refused
check log file /var/log/Xorg.0.log

xinit: giving up
xinit: unable to connect to xserver : Connection refused
xinit: server error

Both cards are nvidia

Hi,

Please review this link for some information as to how best to explain your problem.

- RT

After doing some research with this info I found some posts that link this issue with Linux headers.
I tried apt-get distro update and system crashed so I will reinstall.