My home is encrypted (ecryptFS) so gdm can't access to ~/.config/monitors.xml
There is not another one : root@ubuntu:/# sudo updatedb root@ubuntu:/# locate monitors.xml root@ubuntu:/# I added to /etc/environment : export MUTTER_VERBOSE=1 export MUTTER_VERBOSE=1 export MUTTER_DEBUG=1 export MUTTER_USE_LOGFILE=/tmp/mutterlogs export MUTTER_DEBUG_SM=1 export MUTTER_DEBUG_BUTTON_GRABS=1 export WAYLAND_DEBUG=1 Here is the Mutter log. ** Attachment added: "Mutter log" https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1723577/+attachment/4974765/+files/mutter-1305-debug-log-ZBXK8Y -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1723577 Title: Artful won't start with Wayland activated (AMD?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1723577/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs