Can you also test the latest 3.19 upstream stable kernel? This will tell us if the fix in 4.1 was also sent for inclusion in the stable releases. It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19.8-vivid/ ** Changed in: linux (Ubuntu) Importance: Low => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1453542 Title: 15.04 with 3.19.0-17 kernel boot failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1453542/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs