Public bug reported: Found this logged after enabling debug into/etc/gdm3/custom.conf
gnome-session-binary[1073]: DEBUG(+): Cannot use session '/usr/share/gdm/greeter/gnome-session/sessions/gnome-login.session': non-existing or invalid file. oem@ubuntu:~$ ls -l /usr/share/gdm/greeter/ total 8 drwxr-xr-x 2 root root 4096 Mar 9 13:38 applications drwxr-xr-x 2 root root 4096 Mar 10 10:45 autostart ... the required path is indeed not found; but its not the only one: /usr/lib/gdm3/gdm-x-session[1062]: gnome-session-binary[1073]: DEBUG(+): Cannot use session '/var/lib/gdm3/.config/gnome-session/sessions/gnome- login.session': non-existing or invalid file. oem@ubuntu:~$ ls -l /var/lib/gdm3/.config/gnome-session/ total 4 drwxr-xr-x 2 gdm gdm 4096 Dec 2 10:17 saved-session ... the required path is indeed not found again ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-session-bin 3.27.91-0ubuntu4 ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7 Uname: Linux 4.15.0-12-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: GNOME Date: Sat Mar 17 11:26:05 2018 EcryptfsInUse: Yes ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-session UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-session (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1756522 Title: Cannot use session '/usr/share/gdm/greeter/gnome-session/sessions /gnome-login.session': non-existing or invalid file. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1756522/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs