This bug renders the system broken for anyone using nvidia drivers + fully updated ubuntu 16.
I agree the work arounds aren't all that easy to implement. Nouveau is not really an option for most people because of poor support and low resolutions. To get the older kernel to work you have to rebuilt the Nvidia drivers. I had to do this from console because unity refused to log me in. According to the wiki any bug that affects the system from booting should be classified as critical as well as any bugs affecting large portion of users. https://wiki.ubuntu.com/Bugs/Importance. I think a lot of users are running into this and just have no clue what's going on. At first I thought it was a HD issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1638990 Title: nvidia-367 with kernel 4.4.0-45-generic won't boot Status in linux package in Ubuntu: Incomplete Status in nvidia-graphics-drivers-367 package in Ubuntu: Confirmed Bug description: After I upgraded the nvidia drivers, I could no longer boot via kernel 4.4.0-45-generic. WORKAROUND: Use nouveau. WORKAROUND: Boot with already installed kernel 4.4.0-31-generic. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-45-generic 4.4.0-45.66 ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21 Uname: Linux 4.4.0-45-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: lost 2248 F.... pulseaudio /dev/snd/controlC0: lost 2248 F.... pulseaudio /dev/snd/controlC1: lost 2248 F.... pulseaudio CurrentDesktop: XFCE Date: Thu Nov 3 12:12:55 2016 HibernationDevice: RESUME=UUID=cf59c168-54d0-45b9-b633-240bd76bbaa6 InstallationDate: Installed on 2016-11-01 (1 days ago) InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 11361Q0 ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic root=/dev/mapper/xubuntu--vg-root ro nomodeset quiet splash RelatedPackageVersions: linux-restricted-modules-4.4.0-45-generic N/A linux-backports-modules-4.4.0-45-generic N/A linux-firmware 1.157.4 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/29/2016 dmi.bios.vendor: LENOVO dmi.bios.version: A3KT57AUS dmi.board.name: LENOVO dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.asset.tag: 573921 dmi.chassis.type: 7 dmi.chassis.vendor: LENOVO dmi.chassis.version: NONE dmi.modalias: dmi:bvnLENOVO:bvrA3KT57AUS:bd09/29/2016:svnLENOVO:pn11361Q0:pvrThinkStationC30:rvnLENOVO:rnLENOVO:rvrNODPK:cvnLENOVO:ct7:cvrNONE: dmi.product.name: 11361Q0 dmi.product.version: ThinkStation C30 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1638990/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp