Our original plan was to be able to run 14.04 LTS with the 3.13 GA kernel series, so that we'd have a long support period without having to worry about major kernel upgrades.
When we ran into this bug (in what we thought would be a routine upgrade from one 3.13 point release to another), we were able to work around it by switching to the 3.19 kernel (the vivid HWE kernel for 14.04). Having a regression in the 3.13 series was annoying. However, if I understand all of this correctly, It sounds like the xenial HWE kernel for 14.04 should fix this problem and should have the same support period as the 3.13 GA kernel? If so, it will probably be easier to wait for xenial, so if you could let me know whether my understanding is correct, I'll go ahead and close this. Thank you. -- 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/1522472 Title: Black screen on boot after updating Trusty Status in linux package in Ubuntu: Incomplete Bug description: Current release: Ubuntu 14.04.3 LTS Current version: v3.13.0.68.74 Expected behavior: System boots to GUI showing chromium-browser What happened: Booted to black screen After updating my linux kernel from v3.13.0.32.38 to v3.13.0.68.74, my system does not boot into the GUI properly anymore. X11 starts up and I have confirmed that I can interact with the screen that should be there via keyboard (using chromium logs, I can confirm that I can open new tabs with CTRL+T), but the screen is completely black. If I restart nodm, X11 restarts and comes up as it should. If I simply switch to the vivid kernel (v3.19.0.33.20) on the same system the problem goes away and the system boots properly every time, as well as the system working fine until I update just the linux-generic package. Other possibly useful information: - Every time the system boots to a black screen, plymouth does not appear while booting nor can I TTY switch to it after booting (instead the TTY it should be on is a black screen with a blinking cursor), which is opposite of the behavior observed when the system boots properly. - Attached Xorg.0.log (produced from a bad boot). --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 15 11:11 seq crw-rw---- 1 root audio 116, 33 Jan 15 11:11 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.19 Architecture: i386 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=c64ce442-021a-4873-934f-770057560a1d InstallationDate: Installed on 2015-05-21 (238 days ago) InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.3) IwConfig: p3p1 no wireless extensions. lo no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-68-generic root=UUID=5dff8d1e-9793-45ca-80fa-24207ce6e69e ro nomdmonddf nomdmonisw ProcVersionSignature: Ubuntu 3.13.0-68.111-generic 3.13.11-ckt27 RelatedPackageVersions: linux-restricted-modules-3.13.0-68-generic N/A linux-backports-modules-3.13.0-68-generic N/A linux-firmware 1.127.19 RfKill: Error: [Errno 2] No such file or directory Tags: trusty Uname: Linux 3.13.0-68-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom lpadmin plugdev sudo _MarkForUpload: True dmi.bios.date: 12/15/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5.6.5 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Aptio CRB dmi.board.vendor: AMI Corporation dmi.board.version: A.6 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.6.5:bd12/15/2014:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnAMICorporation:rnAptioCRB:rvrA.6:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: To be filled by O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1522472/+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
