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[Alan Fry <alan.fry@xxxxxxxxxxxxxx>]

HP Elitebook 6930p, Intel graphics, with fully updated Ubuntu Wily and
kernel 3.19.0-17 also freezes early in the boot. It appears to happen
just as the low resolution display changes to higher resolution.

Booting in recovery mode results in low resolution display.

Kernel 3.19.0-16 is OK as is mainline 3.19.6

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https://bugs.launchpad.net/bugs/1453593

Title:
  3.19.0-17 freeze

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  boot with 3.19.0-17 freezes at very early stage, way before the
  appearance of login screen.

  no such problems with kernel 3.19.0-16.

  Tested upstream kernels 4.0.0-1, 4.01, 4.0.2 and 4.1-rc2: all of them
  boot normally.

  No problems to boot with 3.19.0-17 in a lubuntu15.04 virtual machine
  under virtualbox (running on the same hardware platform).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-16-generic 3.19.0-16.16
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic i686
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  volker     2576 F.... pulseaudio
  CurrentDesktop: LXDE
  Date: Sun May 10 21:09:41 2015
  HibernationDevice: RESUME=UUID=56d8d5bd-f32d-4192-a0d4-2395d9df1637
  InstallationDate: Installed on 2014-02-12 (451 days ago)
  InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
  MachineType: Dell Inc. Latitude E6500
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=6ff58f38-956b-49de-99d4-01dfc84b96ad ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-16-generic N/A
   linux-backports-modules-3.19.0-16-generic  N/A
   linux-firmware                             1.143
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/18/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 0NY667
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA11:bd12/18/2008:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0NY667:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude E6500
  dmi.sys.vendor: Dell Inc.

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