My laptop is a Dell 14z - 5423 and it comes with both Intel HD400 and a ATI Radeon 7550M/7570M/7650M, so, perhaps this is where the problem comes from. I'm using 13.04 too.
Regards -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1088244 Title: No Full-Disk Encryption unlock screen on some boots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1088244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs