Thanks, is it doing it after a reboot? One theory could be that when the session files on disk change then gdm doesn't refresh its index and things get confused
** Changed in: gnome-session (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1714312 Title: 'Ubuntu' starts an x11 session instead of wayland Status in gnome-session package in Ubuntu: New Bug description: artful desktop up to date on real hardware Test Case 1. In gdm select a user 2. Click on the cog -> Verify the list of sessions available 4. Select "Ubuntu" and log in -> Verify that wayland is running ($WAYLAND_DISPLAY is set) Expected Result At least "Ubuntu" and "Ubuntu on Xorg" are available Wayland is running Actual result Both entries start xorg instead of wayland. Sometimes it's the opposite, both entries start wayland. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-session (not installed) ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5 Uname: Linux 4.12.0-11-generic x86_64 ApportVersion: 2.20.7-0ubuntu1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Aug 31 18:59:31 2017 InstallationDate: Installed on 2013-09-03 (1457 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902) ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: gnome-session UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1714312/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp