Folks, I simply erased the configuration forcing the system to create a clean one:
open a console trough :
Ctrl+Alt+F1
find X process and kill it:
ps -ef | grep X
Clear old configuration (all unity configurations will be lost)... I have a really old user account, so, I found 2 different paths:
mv ~/.compiz-1 ~/.compiz-1.BROKEN
mv ~/.config/compiz-1 ~/.config/compiz-1.BROKEN
return to graphic mode:
Ctrl+Alt+F7
Folks, I simply erased the configuration forcing the system to create a clean one:
open a console trough : compiz- 1.BROKEN
Ctrl+Alt+F1
find X process and kill it:
ps -ef | grep X
Clear old configuration (all unity configurations will be lost)... I have a really old user account, so, I found 2 different paths:
mv ~/.compiz-1 ~/.compiz-1.BROKEN
mv ~/.config/compiz-1 ~/.config/
return to graphic mode:
Ctrl+Alt+F7
This solved my login problem.