OK, I think I have a fix for this. I've pushed it to Oneiric. If you want to test faster:
$ debcheckout lightdm
$ cd lightdm
$ bzr-buildpackage
$ sudo dpkg -i ../*0.3.7-0ubuntu2*.deb
I think it's an existing bug that got made worse with a recent glib change.
OK, I think I have a fix for this. I've pushed it to Oneiric. If you want to test faster: 7-0ubuntu2* .deb
$ debcheckout lightdm
$ cd lightdm
$ bzr-buildpackage
$ sudo dpkg -i ../*0.3.
I think it's an existing bug that got made worse with a recent glib change.