Lost graphical login/desktop

**dwilliams2** · February 23rd, 2021

I recently upgraded to 20.4 and somehow, during that process I seem to have lost the graphical login screen and desktop. All I have are the tty terminal login options.
I've done some googling today but so far no luck at all. I'm not that well up on Linux and have have the previous version of Ubuntu running for years without issue.

Before the upgrade I had KDE as my desktop and I am lost as to how to get it back.
Here is what I have done so far:

apt-get install kubuntu-desktop (to ensure everything was installed)
dpkg-reconfigure sddm
cat /etc/X11/default-display-manager gives the following result: /usr/bin/sddm

When I reboot my box it just shows the following:

Terminate Plymouth Boot Screen
Set console scheme

I'd appreciate any help/guidance to get this working again. I know my way around the console but not familiar with too many commands.

**dino99** · February 25th, 2021

Be sure to use a cleaned system: run autoclean/autoremove to get rid of old packages/settings left behind.
Reboot and look at "journalctl -b" output to know about possible errors (red lines) and harmless warnings (yellow lines).