[Bug 2006059] Re: gdm requires a second login to start xorg session instead of wayland

[Daniel van Vugt]

All upstream references do seem to point to
https://gitlab.gnome.org/GNOME/gdm/-/issues/733 but the "fix" for that
is already in gdm3 version 41.3 and later. Yet the bug still happens.

Some people are focussed on the cgroup errors that come before it, but I'm not sure if they're really related:
https://www.reddit.com/r/gnome/comments/oknd9c/failed_to_start_application_launched_by/

** Also affects: systemd (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: gnome-session (Ubuntu)
   Importance: Undecided
       Status: New

** Bug watch added: gitlab.gnome.org/GNOME/gdm/-/issues #733
   https://gitlab.gnome.org/GNOME/gdm/-/issues/733

** Summary changed:

- gdm requires a second login to start  xorg session instead of wayland
+ systemd refuses to start secondary Xorg logins [org.gnome.Shell at x11.service: Skipped due to 'exec-condition'.]

** Changed in: gnome-session (Ubuntu)
       Status: New => Confirmed

** Changed in: systemd (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2006059

Title:
  systemd refuses to start secondary Xorg logins
  [org.gnome.Shell at x11.service: Skipped due to 'exec-condition'.]

Status in gdm3 package in Ubuntu:
  Confirmed
Status in gnome-session package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  I have three accounts and I need all three to run on xorg instead of
  wayland.

  For some reason, when switching accounts, two of them consistently
  start wayland even when I select plain gnome from the gdm menu. To get
  xorg, I need to log out and log in a second time.

  A solution that is supposed to work consists in customizing
  /etc/gdm3/custom.conf (see  https://docs.fedoraproject.org/en-
  US/quick-docs/configuring-xorg-as-default-gnome-session/). This
  solution does not work.

  I have also experimented with the following options:
  DefaultSession=gnome-xorg.desktop
  and
  PreferredDisplayServer=xorg
  Neither appears to set xorg as the default...

  I have found the following bug reported upstream against gdm:
  https://gitlab.gnome.org/GNOME/gdm/-/issues/733.
  It looks like this was fixed a year ago but my system is still affected.

  Note that I am using the gnome-session package. I doubt whether it
  makes any difference but I am adding it for the sake of completeness.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: gdm3 42.0-1ubuntu7
  ProcVersionSignature: Ubuntu 6.0.0-1010.10-oem 6.0.9
  Uname: Linux 6.0.0-1010-oem x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82.3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: GNOME
  Date: Sun Feb  5 19:44:53 2023
  InstallationDate: Installed on 2022-03-27 (315 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220326)
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.gdm3.custom.conf: 2023-01-30T07:57:48.574915

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