Black screen with mouse cursor ok? (12.2 x86_64)

English Install/Boot/Login
1

Hello,
After a failed ordinary update due to a power shutdown, I started to have some problems:

  • Chromium crashes X server
    After several tries now, I can’t start on my user: got the nvidia logo then the screen goes black with the mouse cursor moving normally.
    Hitting CTRL+ALT+F1:
    Logging my user and the session launches with “startx” but no sound. Even if I restart, it always goes to that black screen (Nvidia drive uninstalled/ re installed already.
    Seems to be a xorg / user problem?

Thanks for help!