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As title says i got a black screen after upgrade my ubuntu server from 22.04 to 22.04.1 upgrade went well without errors, services work as intended i can ssh to server and manage it from there but i got a black screen on my monitor.

Any suggestion on how should I proceed?

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    Check the related questions on the right about the same issue. Some of the posts have answers that may be useful to you. Here's just one of the 3 posts: askubuntu.com/questions/1353563/…
    – user25406
    Commented Feb 10, 2023 at 14:34
  • @user25406 thanks for awnser, i have checked similar problems before posting but no luck.
    – Cristian
    Commented Feb 13, 2023 at 11:36

2 Answers 2

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The solution that work for me was:

Temporary Fix To get the system to boot:

  1. After turning on your PC, hold the right SHIFT key to get to the GRUB bootloader if your computer uses a BIOS. If your computer uses EFI or UEFI, continuously tap the “ESC” (escape) key after turning on your PC.
  2. Once GRUB is open, press the “e” key to edit the first highlighted entry “Ubuntu”. Move your cursor down to the line that starts with “linux”, and use the right arrow key to find the section with the words “ro quiet splash”.
  3. Add “nomodeset” after these words.
  4. Feel free to remove “quiet” and “splash” for more verbosity to troubleshoot the boot process. Press “CTRL + X” or “F10” to boot.

The system should now boot.

Permanent Fix To permanently resolve the issue:

  1. Once the system has booted using the temporary fix, log in.
  2. Open a terminal window (Applications -> Terminal, or press the “Start” button and type terminal).
  3. Either “su” in to root, or use “sudo” to open your favorite text editor and edit the file “/etc/default/grub” (I use nano which can be install by running “apt install nano”):

nano /etc/default/grub

  1. Locate the line with the variable “GRUB_CMDLINE_LINUX_DEFAULT”, and add “nomodeset” to the variables. Feel free to remove “splash” and “quiet” if you’d like text boot. Here’s an example of my line after editing (yours will look different):

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"

  1. Save the file and exit the text editor (CTRL+X to quit, the press “y” and enter to save).
  2. At the bash prompt, execute the following command to regenerate the grub.conf file on the /boot partition from your new default file:

update-grub

  1. Restart your system, it should now boot!

Solution foun on:

https://www.stephenwagner.com/2019/05/05/ubuntu-linux-black-screen-frozen-system-after-upgrade-install/

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In my case, I had access non-GUI terminal and simply reinstalled ubuntu-desktop:

sudo apt update
sudo apt upgrade
sudo apt autoremove

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