Very similar behavior with Trusty. My best luck is to choose recovery from grub menu and simply "resume" from there. That gets me fairly consistent log in though it's crashed a few times as well.
I have spare drives and a different AMD box I can test with as well as a Macbook Pro. Let me know what information/logs you need. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1286617 Title: Ubuntu 13.10 AMD64bit constant soft lock on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-pxpress/+bug/1286617/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
