Pirouette Cacahuète, the next step is to fully commit bisect from kernel 3.16.0-34 to 3.16.0-36 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: latest-bios-1.12 ** Tags added: needs-bisect regression-update ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1449401 Title: After 14.10 updates to kernel 3.16.0-36, system is not booting, resulting in black screen due to NULL pointer in intel_ring_init_seqno To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1449401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs