Can you follow the "Boot options" instructions on the following wiki to enable additional output on boot:
https://wiki.ubuntu.com/DebuggingKernelBoot As mentioned on the wiki, it would be great if you can attach a log file which may have captured any messages you see. If you are unable to capture a log file, a digital photo will work just as well. As a last resort you can even copy messages down by hand. ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: kernel-da-key -- 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/1274987 Title: can't boot with new lowlatency kernel Status in “linux” package in Ubuntu: Confirmed Bug description: with the new 3.13.0-6-lowlatency i cant boot. it choose and shows up plymouth (or some text, if i disable plymout) next the computer hungs up completely. no SysRq. only a hard turn off. the same generic kernel works without problems ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-6-lowlatency 3.13.0-6.23 ProcVersionSignature: Ubuntu 3.13.0-6.23-generic 3.13.0 Uname: Linux 3.13.0-6-generic x86_64 ApportVersion: 2.13.2-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: fabi 2400 F.... pulseaudio /dev/snd/controlC1: fabi 2400 F.... pulseaudio CurrentDesktop: KDE Date: Fri Jan 31 16:59:44 2014 HibernationDevice: RESUME=UUID=1db62c66-60db-4cfe-bde9-72d501cc14cc InstallationDate: Installed on 2013-12-12 (50 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Dell Inc. OptiPlex 760 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-6-generic root=UUID=5293cdc9-6817-4800-8809-b1d291d3a7e0 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-6-generic N/A linux-backports-modules-3.13.0-6-generic N/A linux-firmware 1.123 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/21/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0F373D dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd08/21/2012:svnDellInc.:pnOptiPlex760:pvr:rvnDellInc.:rn0F373D:rvrA00:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex 760 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1274987/+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