@ciro: that could be caused by a number of things. If you can ssh into the machine, or VT switch by pressing CTRL+ALT+F2, please collect the following data:
1) the output of dkms status
2) the dmesg output
3) /var/log/Xorg.0.log
4) /var/log/gpu-manager.log
@ciro: that could be caused by a number of things. If you can ssh into the machine, or VT switch by pressing CTRL+ALT+F2, please collect the following data:
1) the output of dkms status gpu-manager. log
2) the dmesg output
3) /var/log/Xorg.0.log
4) /var/log/