recent updates to wayland GUI don't support this. run: echo $XDG_SESSION_TYPE if output is wayland, then Install x11: sudo apt-get install xorg openbox.

Then change the xdg session type and reboot: sudo nano /etc/gdm3/custom.conf.

You should see something like enablewayland=true, and a commented line right above it explaining; something like

#Uncomment the line below to force the login screen to use Xorg

then save, close and restart your system. you can confirm it's been changed by running the first command again.

Recent updates to wayland GUI don't support this.

Run:

echo $XDG_SESSION_TYPE

If the output is wayland, then install X11 using:

sudo apt-get install xorg openbox

Then change the xdg session type and reboot:

sudo nano /etc/gdm3/custom.conf

You should see something like enablewayland=true, and a commented line right above it explaining; something like

#Uncomment the line below to force the login screen to use Xorg

then save, close and restart your system. you can confirm it's been changed by running the first command again.