Just got me a new XPS 13 Dev edition and so far all is working correctly... except the Super Key doesn't call up the Unity dash or activate the toolbar.
I installed CompizConfig and under Ubuntu Unity Plugin, Launcher section, the "Key to show Dash..." is set to disabled. When I try to enable it and set it to Super, it recognizes this briefly ("<Super>" is displayed) and then reverts back to Disabled. Ditto with any other key setting I try to change to Super.
Anyone know what is going on here?
BTW, nice that we now have a way to configure what is Function and Alt Function!
Probably this can help:
apt-get remove oem-superkey-workaround