Locked out of Ubuntu

Question

When I start my computer and boot into Ubuntu, the Ubuntu loading sign shows up (Ubuntu 20.04), However, the lock screen doesn't... Just a black screen.

This happened after I tried to remove KDE from my system after installing and realizing it didn't suit me. When I logged back into Gnome, things didn't look right. So I tried uninstalling most of the KDE packages using synaptic and sudo apt autoremove.

But still, things looked off for example the lock screen was still KDE's and the theme was mostly KDE too... So I figured that KDE packages were still lurking around... (I fixed the theme problem by resetting the ubuntu settings.. but the KDE lock screen was still there)

Now the next step I took caused the problem I think: I figured that I hadn't installed many packages after installing focal fossa, so using synaptic I completely removed all packages which didn't have the Ubuntu sign on them(i figured the Ubuntu sign on the second column means they were pre-installed Ubuntu packages)

After updating and restarting Ubuntu I can't see the lock screen... Just a blank screen after the Ubuntu loading sign.

I also tried entering the password and hitting enter... But nothing happens which means I think I have removed the lock screen package.

What should I do know?

I am able to log into the terminal.

If your computer has a wired network connection, try following the instructions at this answer. — luk3yx, Jun 25 '20 at 05:23
@luk3yx thanks... I don't have a wired internet connection... But i do have the live usb... Will that help? — Miqdaad Indori, Jun 25 '20 at 05:42

score 0 · Accepted Answer · answered Jun 25 '20 at 05:59

0

You might want to run the following command in a TTY (which you can launch using Ctrl-Alt-F4):

sudo tasksel install ubuntu-desktop

answered Jun 25 '20 at 05:59

Rudra Saraswat

182

Should i remove Ubuntu desktop first? – Miqdaad Indori Jun 25 '20 at 06:05
You can run the command directly. – Rudra Saraswat Jun 25 '20 at 06:05
I did that but still the lockscreen is not appearing:(. Its there a way enter into Ubuntu using the tty3? – Miqdaad Indori Jun 25 '20 at 06:08
You might also want to run the following command, and then select gdm3 in the prompt:
sudo dpkg-reconfigure gdm3

If it doesn't work, run the command below and then run the above command:

sudo apt install gdm3
– Rudra Saraswat Jun 25 '20 at 06:12
No i mean the GUI Ubuntu... The normal one we get unlocking the lockscreen – Miqdaad Indori Jun 25 '20 at 06:12
Run the following command, and then select gdm3 in the prompt: sudo dpkg-reconfigure gdm3 If it doesn't work, run the command below and then run the above command: sudo apt install gdm3 – Rudra Saraswat Jun 25 '20 at 06:13
Please report the output of the above commands. – Rudra Saraswat Jun 25 '20 at 06:15
Ya i think gdm3 had the problem... I ran sudo apt install gdm3 and it says gdm3 is already in its newest version... But sudo dpkg-reconfigure gdm3 gives gdm.service is not active, cannot reload – Miqdaad Indori Jun 25 '20 at 06:17
Run: sudo systemctl enable gdm3 and sudo systemctl start gdm3 – Rudra Saraswat Jun 25 '20 at 06:19
Please report the output. – Rudra Saraswat Jun 25 '20 at 06:23

Locked out of Ubuntu

1 Answers1