I have the same issue - on a desktop computer. This is a dump of some info from duel boot windows. Note: I am able to boot in a recovery mode if I select the Safe Graphics mode. My router does not indicate a live connection to the network card. Please indicate additional information to include to that I can help resolve this problem.
System Manufacturer: Gateway System Model: DX4300 Processor: AMD Phenom(tm) II X4 810 Processor (4 CPUs), ~2.6GHz Memory: 8192MB RAM Card name: ATI Radeon HD 5700 Series Realtek Digital Output (Realtek High Definition Audio) Marvell Yukon 88E8071 PCI-E Gigabit Ethernet Controller -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1167114 Title: Linux 3.5.0.27.43 does not boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1167114/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs