Hello, the NVIDIA drivers (384 from Debian and 390 repositories from the nvidia site) do not allow me to have "virtual consoles" (to be clear, those that are activated with Ctrl-Alt-F1 .. F6). By installing Nouveau the problem disappears, with the two different versions of the NVIDIA drivers the problem appears.
The video card is: VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 520] (rev a1) With the Nouveau drivers during the Boot there is a time when the video card switches from text mode to graphic mode (so to speak, when the [ok] in green are starting to appear). With the NVIDIA dirver it crashes while remaining in the text mode (lightdm is executed correctly). I reported the bug with reportbug-ng, let's see what happens. Thanks for your help. m