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I installed Ubuntu 18.04.6 desktop and then lubuntu-desktop. Now the system boots to non-graphical login screen. The user of the laptop will have to press ctrl+alt+F7 to go to graphical login screen.

Is there some configuration file where I can set it to go automatically to graphical login screen?

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  • @guiverc see the edit.
    – xralf
    Nov 7, 2021 at 1:59
  • Which dm (display manager) did you select to use? Ubuntu desktop (GNOME) defaults to gdm3 which is not used by LXDE/Lubuntu so you would have been asked to select one to use (the display manager is the greeter or login screen).
    – guiverc
    Nov 7, 2021 at 2:16
  • @guiverc I'm using LXDM
    – xralf
    Nov 7, 2021 at 2:20
  • Have you tried using the LXDE/Lubuntu default; which was lightdm? ie. sudo dpkg-reconfigure lightdm and you should be asked to re-select one of the DMs (note: this is from memory as we've not supported LXDE for awhile.. but phab.lubuntu.me/w/bugs matches my memory... I recall some testing with lxdm & others (xdm) in 2019/2020 but too long ago) Lubuntu included a GUI config tool for lightdm - packages.ubuntu.com/bionic/lubuntu-desktop
    – guiverc
    Nov 7, 2021 at 2:25
  • I tried sudo dpkg-reconfigure lightdm, but after login the user has Ubuntu desktop (Unity I think), but he needs some lightweight desktop. That's because I'm using sudo dpkg-reconfigure lxdm
    – xralf
    Nov 7, 2021 at 2:32

2 Answers 2

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I would suggest to (re)install special Lubuntu Desktop task package by

sudo apt-get install --reinstall lubuntu-desktop^

In the above command note ^ at the end, it is task. It will install all the packages which Lubuntu installation has out the box.

Then reboot.

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I would try to install gdm3, because it is robust and works with practically everything. Then, choose it as the default display manager.

sudo apt install gdm3 && sudo dpkg-reconfigure gdm3

the command will install gdm3 and then bring up a screen to choose a default display manager. Please choose gdm3

Reboot, and you should get a gui login screen.

You can do it! I have faith in you!

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  • I already put the laptop back to my coworker and learned her to press ctrl+alt+F7, but when I visit her again, I will certainly try it.
    – xralf
    Nov 7, 2021 at 9:47

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