This Black screen on login, gnome-shell eating 100% of CPU
has the same symptoms I have.
I can login with nvidia-drivers if I
- recovery console at grub
- make filesystem writeable
- resume to gui login
- switch to tty 4 after login screen is visible
- login on tty4
- Switch back to gui login on tty1
- login is possible
How do I debug this? There is nothing useful in the text logs.