Looks like your stack dump is identical to mine, so I shouldn't need to post it unless someone asks for it.
By the way, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913848 is the one I filed on the black screen resume issue. The more attention we can get from Dell Duo users, the more heat we can get on these bugs and try to get them fixed.
Looks like your stack dump is identical to mine, so I shouldn't need to post it unless someone asks for it.
By the way, https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/913848 is the one I filed on the black screen resume issue. The more attention we can get from Dell Duo users, the more heat we can get on these bugs and try to get them fixed.