Description

This test case tests whether, when using the Nouveau driver, X can successfully shut down and restart.

How to test

Ensure the file /etc/X11/xorg.conf does not exist, or is a valid file that uses the nouveau driver. If you are using the live image, ignore this step
Shut your system down entirely, then start it up again, in console mode. When the boot prompt appears, hit a key to allow you to change the boot options. Hit the 'e' key on the default entry, select the kernel options line, hit 'e' again, and add simply a space and the number '3' to the end of the line. Then boot with that change
The system will boot to the console. Log in as a normal user (if using the liveCD the username is: 'liveuser' no password will be needed)
Start X:
```
startx
```
Verify that it works as usual
Log out from your desktop environment. This should stop X and return you to the console. Check there are no unusual errors
Start X again:
```
startx
```
Again test that it works as usual