adding GUI to Ubuntu Server 20.04 results in no log in screen

[Jerry Clement]

apt install ubuntu-desktop on Servers with embedded Matrox G200 Graphics Controller issue

After install/reboot there is no gdm login displayed
Editing /etc/gdm3/custom.conf to force gdm to use Xorg instead of Wayland fixed the issue

Ubuntu 19.10 has the same problem
Same issue found installing the Desktop Version

Had to force the /etc/dgm3/custom.conf to use xorg from Grub recovery mode

Conclusion being - should we try to fix this?

There may already be a fix in process
https://gitlab.gnome.org/GNOME/gdm/issues/364
Here are three proposals if the above does not pan out, one of these should work, Number 3 is preferred
1. Fix Wayland’s support for G200
2. Rip out the broken support for Matrox G200 in Wayland
3. Convince Canonical to blacklist the G200 from Wayland during install and force Xorg automatically

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1870208

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Kai-Heng Feng (kaihengfeng)]

Isn't the fix in GDM already merged?

[Richard Scheller (richardscheller)]

I just installed the the 04/17 daily build of 20.04, and the problem still exists.

[Jerry Clement (jerry-clement)]

this fix... https://gitlab.gnome.org/GNOME/gdm/issues/364 may have been merged... and closed a year ago or more... Does not fix this problem.