Thanks for the hint, Timo! 3.16.0-37.51 also doesn't boot on my T450s.
Boot process gets stuck displaying: Loading Linux 3.16.0-37-generic Loading initial ramdisk I installed the .deb from the link you provided, Timo, and aptitude tells me the -51 version is installed: $ sudo aptitude show linux-image-3.16.0-37-generic [...] Package: linux-image-3.16.0-37-generic New: yes State: installed Automatically installed: no Version: 3.16.0-37.51 3.16.0-34.47 is still the last kernel that works for me, although not perfectly (rendering issues when using SNA, fallback to UXA makes system usable but with partially very bad 2D graphics performance). -- 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
