Restart Xorg server and Noveau driver

[Javier Perez]

Hi.

Xorg froze while playing a game with wine. Only the mouse worked (not even
the keyboard). I had to hard reboot.

Checking out the logs (journalctl) I saw  repetitive nouveau errors.
(sorry, not at home, else I´d post them).

Other times I have been able to ssh into my machine and everything else is
working. I did not try this time (my secondary machine is down for the
moment).

My question is: How can I restart the Xorg server and/or the nouveau
driver?
If I could ssh into the system, I think I could just restart both and not
have to reboot the whole thing. It is more annoying that anything else
because the machine boots fast, but still I think it should not be
necessary.

Just polishing my skills.

Thanks