gdm3 no greeter displayed until a VT switch is forced

[Mike]

Hello,

Ubuntu 18.10, Intel integrated video, a monitor connected by DVI, a projector connected by HDMI.
While all the boot messages appear on both devices (if they are turned on) the gdm3 greeter doesn't appear at all (black screens) UNTIL I switch to a virtual console and back (Ctrl+Alt+F2, Ctrl+Alt+F1).

[Daniel van Vugt (vanvugt)]

Can you please run this command:

  lspci -k > lspcik.txt

and then attach the file 'lspcik.txt' to the bug?

[Mike (0x656b694d)]

Voila

[Daniel van Vugt (vanvugt)]

Can you please test to see if this issue is related to just one of the outputs? Try the DVI monitor and HDMI projector separately. Any difference?

[Mike (0x656b694d)]

Sure,
I tried that and it worked fine in both configuration.

The difference is that after doing that even with both devices attached the greeter appears! :D

I'm not sure but I have a feeling that the bios messages became bigger, but that's another question.

Thank you!

I'll come back if the issue reappears.

[Daniel van Vugt (vanvugt)]

Incomplete for now. The bug will automatically close after 60 days if there are no further comments.

[Mike (0x656b694d)]

Ok, I'm back :)

So after making the projector mirror the monitor to watch a movie and then switching back to single monitor mode, the situation is back to what has been described in the bug description.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Hans-Martin (hmm-heeg)]

Same bug after upgrading to 18.10, but with completely different graphics card (nvidia).

Output of lspci -k is attached.

[Hans-Martin (hmm-heeg)]

Observation: In /var/log/syslog, after upgrading to 18.10 these critical messages appear for the first time:
Apr 4 01:12:02 hmm-desktop gnome-session[3467]: gnome-session-binary[3467]: CRITICAL: Unable to create a DBus proxy for GnomeScreensaver: Fehler beim Aufruf von StartServiceByName für org.gnome.ScreenSaver: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited
: Process org.gnome.ScreenSaver exited with status 1
Apr 4 01:12:02 hmm-desktop gnome-session-binary[3467]: CRITICAL: Unable to create a DBus proxy for GnomeScreensaver: Fehler beim Aufruf von StartServiceByName für org.gnome.ScreenSaver: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.S
creenSaver exited with status 1

Could there be a connection?

[Hans-Martin (hmm-heeg)]

Some context from these errors.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 18.10 (cosmic) reached end-of-life on July 18, 2019.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.