After some poking about I have discovered that LightDM no longer crashes if I change `/etc/lightdm/lightdm.conf.d/90-ubuntu-mate.conf` from:
[SeatDefaults] autologin-user=ubuntu autologin-user-timeout=0 user-session=mate
...to:
[SeatDefaults] user-session=mate
That said, the original configuration was working prior to August 28th 2014 and continues to work in Ubuntu Trusty 14.04. I hope this additional information is useful.
After some poking about I have discovered that LightDM no longer crashes if I change `/etc/lightdm/ lightdm. conf.d/ 90-ubuntu- mate.conf` from:
[SeatDefaults] user=ubuntu user-timeout= 0
autologin-
autologin-
user-session=mate
...to:
[SeatDefaults]
user-session=mate
That said, the original configuration was working prior to August 28th 2014 and continues to work in Ubuntu Trusty 14.04. I hope this additional information is useful.