I've just installed NVIDIA proprietary drivers (nvidia-driver-460 from additional drivers). After reboot, I get a black screen with a cursor blinking. After a few seconds, I've moved to a tty using Ctl + Alt + F2, and without giving me time to login, the graphical interface started.
I rebooted a few times, and this behavior seems to continue: it will give me a black screen with a cursor blinking until I move to a different tty, and then X starts and asks me for normal login.
Is there any way to fix this?