I tried to install cinnamon on my Kubuntu 13.10, just upgraded from 13.04 without problems.
There is this ppa: ppa:gwendal-lebihan-dev/cinnamon-stable
Also tried to use the non-ppa-versions (those shipped with *Ubuntu).
I get the error message from within lightdm:
Unable to load session 'cinnamon'
Unable to load session 'cinnamon2d'
I also deleted my gnome settings (all files/folders from my home dir) and reset cinnamon by using this command line:
gsettings reset-recursively org.cinnamon
Both didn't help. How do I get Cinnamon up and running? I'm fine with debugging. Would it be possible I did not upgrade my amd graphics driver properly?
Thanks in advance! Ben
PS: My primary desktop is KDE, so I have no problems with unity not running - it isn't running anyway.