@tiJoe You'll get that error if the kernel package came from kernel-ppa mainline (or was custom built, etc.), rather than an official ubuntu kernel package. I'm guessing yours came from http://kernel.ubuntu.com /~kernel-ppa/mainline/v4.3.5-wily/, which would explain the message.
I had to uninstall and boot from the official kernel (which took quite a few attempts, as the boot process usually hung), in order to submit the original bugreport. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575437 Title: Asus ZenBook UX501VW frequently hangs during boot under Ubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs