I have continued to research this issue. In the meantime, I have also upgraded to Ubuntu 17.10 and the issue persists with kernel 4.10.0-19.
My research eventually turned up this thread containing a workaround for the problem: https://bbs.archlinux.org/viewtopic.php?id=221391 Kernel 4.10.0-19 will boot correctly with the radeon driver loaded and functioning by adding the following kernel parameter to grub: radeon.dpm=0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1671291 Title: Kernel reboots immediately after grub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1671291/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
