I tested the 4.9.0-040900-generic (4.9.0-040900.201612111631) kernel from the mainline PPA, same issue.
Looking at the boot output the last message I see is about gdm.service starting. The machine freezes at the boot output as soon as the mouse cursor appears. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697450 Title: Whole machine freezes at startup using kernels after 4.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1697450/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs