kernel-packages team mailing list archive

[Josh Kelley <1522472@xxxxxxxxxxxxxxxxxx>]

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.

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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.

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