Public bug reported:
Installed Ubuntu 18.04 on a Dell Optiplex but after the withdrawal of
the flash drive and pressing enter to reboot the computer, the computer
screen froze just before the login appeared. The installation was
repeated with five different flash drives with both Ubuntu 18.04 and
Ubuntu 18.04.1. The same result occurred each time. After some
research, it was discovered that the LightDM has been replaced as the
default login display manager by GDM3 which apparently is a lot heavier.
Although the Dell Optiplex is over ten years old it still meets the
minimum requirements for the installation of Ubuntu. It will install
and reboot after installation of all of the Ubuntu "flavors" [Kubuntu,
Ubuntu Mate, Ubuntu Budgie, Xubuntu, and Lubuntu] as well as Ubuntu
16.04.4. If a computer meets the minimum install requirements it
should be able to install Ubuntu. As a work around the LightDM was
installed and made the default login display manager. That works as
expected. Is the new default login display manager to heavy for some
computers to load?
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1788440
Title:
A Dell Optiplex will not reboot after a fresh install of Ubuntu 18.04.
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