I am seeing this issue too, but in my case, it seems there is something wrong in bbswitch-dkms, if I remove it manually by 'sudo rm /lib/modules/4.4.0-xx-generic/updates/dkms/bbswitch.ko' I can boot into system with both intel and nvidia mode (prime-select intel or prime- select nvidia).
Since nvidia-prime depends on bbswitch-dkms, I can not remove bbswitch- dkms by 'apt remove', so the temporary solution for me is to remove the kernel module. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1530405 Title: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kerneloops:814] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1530405/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
