Thanks for the bug report. can you please check which version of mutter are you using.? did it work before? please do the following in terminal and paste the results
$ apt-cache policy mutter ** Changed in: unity (Ubuntu) Status: New => Incomplete -- Get only white screen after login https://bugs.launchpad.net/bugs/608361 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs