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So following these instructions to install Ubuntu 20.04 onto ZFS Root, I got KDE Neon installed (neon-desktop virtual package). Everything seems good, except when I boot up there's no GUI login. I found SDDM wasn't enabled, so I enabled it systemctl enable sddm. When I do systemctl status sddm it now shows it's Active, running, no errors.

● sddm.service - Simple Desktop Display Manager
     Loaded: loaded (/lib/systemd/system/sddm.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-03-17 23:42:33 PDT; 19min ago
       Docs: man:sddm(1)
             man:sddm.conf(5)
   Main PID: 2103 (sddm)
      Tasks: 2 (limit: 76373)
     Memory: 6.9M
     CGroup: /system.slice/sddm.service
             └─2103 /usr/bin/sddm

Mar 17 23:42:33 darklaptop systemd[1]: Started Simple Desktop Display Manager.
Mar 17 23:42:33 darklaptop sddm[2103]: Initializing...
Mar 17 23:42:33 darklaptop sddm[2103]: Starting...
Mar 17 23:42:33 darklaptop sddm[2103]: Logind interface found

Yet even after I reboot, nothing shows up as a login interface. When I login, and run startx, Plasma DE does startup and run fine, everything seems good.

EDIT: systemctl get-default output is graphical.target

EDIT2: Some new information. Booting with nomodeset kernel parameter has it load up fine on boot. Without that, it just acts as it did previously

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  • Hello. Can you give us the output of systemctl get-default?
    – Fanatique
    Mar 18, 2021 at 8:49
  • Yes, see above, it's graphical.target
    – Drizzt321
    Mar 18, 2021 at 17:23
  • @Fanatique any further suggestions?
    – Drizzt321
    Mar 19, 2021 at 6:04

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