Need help debugging guest session

[Walter Lapchynski]

If particular session manager causes a problem that others don't, there are
two possible causes:
1. The session manager changed to be incompatible with the guest session
2. Vice versa

I'm not sure how I can determine which is the cause, but lightdm's guest
session is not playing well with recent versions of lxsession in Lubuntu.
No such problems from Xubuntu:
https://bugs.launchpad.net/ubuntu/+source/lxsession/+bug/1273524

That being said, help?

@wxl
Lubuntu Release Manager, Head of QA
Ubuntu PPC Point of Contact
Ubuntu Oregon Team Leader