Mouse and keyboard not working after stopping xorg process. Persists after reboot

So I accidentally stopped a running Xorg process on my ubuntu (with kill -STOP and the PID). I was trying to stop another process but got the wrong PID.

After I did it, immediately mouse and keyboard stopped working. On reboot, I can log in just fine (mouse an keyboard work perfectly, same goes for my windows setup and also ubuntu in recovery mode), but then the second I'm logged in I can't use mouse or keyboard again (neither usb nor the ones my laptop has). The mouse is just frozen. This means I can't open a command window etc. either. Other stuff seems to be working normally (time updates in the UI and I get notifications like HPLIP errors).

How can I fix this?

I'm on Ubuntu 18.04.

Solution 1:

First U Need To Get Access To The Terminal!

Start Ubuntu like you normally would. Let it get all the way to the login screen. When you get there, don’t sign in. Instead, press Ctrl + Alt+F3 on your keyboard. Ubuntu will drop out of the graphical login screen and into a black and white terminal.

Enter your username in the prompt, then provide your password when asked. You’ll arrive in a familiar-looking terminal screen. You can navigate here exactly like you do in your graphical terminal windows.

Then Try The Following Commands :

sudo apt remove xserver-xorg-input-all
sudo apt install xserver-xorg-input-all

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