Public bug reported:

  Installed: 3.28.3-0ubuntu18.04.3

Description:    Ubuntu 18.04.1 LTS
Release:        18.04

I expect the greeter to load every boot.

Instead, gdm3 is not stable on my system, it will work for either one or
several boots after I take corrective action, but inevitably this
results in the greeter not loading. The graphics card on my Intel Core
i5 system is an Nvidia GTX 970, and I manually installed nvidia-
driver-415 when I could not load a greeter as soon as I had installed.

Searching here and elsewhere, I have tried many things to resolve this,
which I will outline below. If you know something else I can try - to
get make gdm3 stable - please let me know.

Even with WaylandEnable=false uncommented in /etc/gdm3/custom.conf, I
usually cannot login, instead of the greeter I would see either a black
screen or graphic distortion like a black screen with some pink lines
across the top, and I am only able to login setting nomodeset.

With gd3 not working, I tried lightdm, and on encountering similar
issues switched back to gdm3 again:

sudo apt-get install gdm3
sudo dpkg-reconfigure gdm3

This seemed to work - kind of, for the first few days I could boot most
of the time. I have quiet splash permanently removed from my boot
options, and boot was sometimes hanging on Started NVIDIA Persistence
Daemon as in the attached images.

Another time with gdm3 I saw the following output instead of the
greeter, also attached.

How can I begin to resolve this issue please?

** Affects: gdm3 (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "gdm3 sample distrotion"

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  Even withg WaylandEnable=false gdm3 only loads sometimes

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