Ubuntu – Ubuntu boots to black screen with cursor after upgrade (from 18.04 to 20.04)

bootdesktopdesktop-environmentsfirmwaregui

it says firmware load failed then boots to a black screen, if you do Ctrl alt F4 it opens a non gui terminal.

Best Answer

  • Ok, so I would try to re-install the GUI / Desktop:

    sudo apt update
    sudo apt upgrade
    sudo apt autoremove
    
    sudo apt remove ubuntu-desktop
    sudo apt autoremove
    sudo apt install ubuntu-desktop
    

    or

    sudo apt-get install ubuntu-gnome-desktop
    

    or. one could try sudo apt-get install --reinstall ubuntu-gnome-desktop

    or whatever desktop you have (can be xfce4, kde, or something else although I have not tried all of the options, but xfce4 seems to work flawless.)

    Edit: related Reinstall Gnome

    Just in case this wouldn't work for someone in the future:

    • You can always try to install another (different) GUI/Desktop: Like LXDE, and from there (when you have a working GUI/Desktop) Maybe try different things?

    Extremely glad it worked and that I could help!

    Note: I have noticed that

    • *This seems to be a very, very common problem (Because I have often, and some of my friends - had this problem, some other problem that (in my case) was after this worked; was the Ubuntu was laggy, but in my case it resolved itself to just, install drivers & update the OS and reboot.

      (In case this would be the issue after, this could be a good thing to try)*

    Edit: If some has problems with installing drivers

    (e.g Nvidia) I would highly suggest checking out Smaili's Great answer here - (Since it's the same version, too - and driver problems can often come after a solution like this above)

    Thanks!

    regards.

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