I've just tested the nvidia-173 driver instead of the 270 one, and I can say unity is working now :)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/728745 Title: [nvidia, 7300, 7400] display freeze when using unity desktop -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs