here is the solution
ctrl + alt + f1 login to console
aptitude install nvidia-xconfig
wait for installation to complete
now you can type :
Type: Posts; User: Greek
here is the solution
ctrl + alt + f1 login to console
aptitude install nvidia-xconfig
wait for installation to complete
now you can type :
login to tty1
apt-get update
apt-get upgrade -y
apt-get install -f gdm3
Done , problem slove