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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1406132

Title:
  Radeon GFX card fails on 3.16.0-28

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Expected behaviour, and behaviour on previous kernels (3.16.0-25 and before):
   Normal boot, ending in Lighdm login screen or in my case Kodi
  Observed behaviour:
   Boot ends with blank screen, dmesg shows errors.

  Hypothesus:
   This is a bug related to upgrading the kernel.

  What I have done:
   Using apt-btrfs-snapshots I reverted until I found the upgrade that caused the problem. No  X, or X related components were updated on this boundary.  Changing the booted kernel did show the problem.
   Kernels tried that worked:
    vmlinuz-3.16.0-23-generic
    vmlinuz-3.16.0-24-generic
    vmlinuz-3.16.0-25-generic

  Assuming that 'ubuntu-bug linux' has included enough information.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.16.0-28-generic 3.16.0-28.38
  ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1
  Uname: Linux 3.16.0-28-generic x86_64
  ApportVersion: 2.15.1-0ubuntu1
  Architecture: amd64
  Date: Mon Dec 29 09:22:51 2014
  HibernationDevice: RESUME=UUID=3493ba1a-188f-4b7d-b9cf-c404cb204ece
  InstallationDate: Installed on 2014-05-31 (210 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312)
  IwConfig:
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: HP ProLiant ML110 G7
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-28-generic root=UUID=80479971-6f5f-49ed-9923-0ea40b093cb5 ro rootflags=subvol=@ quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-28-generic N/A
   linux-backports-modules-3.16.0-28-generic  N/A
   linux-firmware                             1.140
  RfKill:
   0: hci0: Bluetooth
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: lirc_serial
  UpgradeStatus: Upgraded to vivid on 2014-08-03 (146 days ago)
  dmi.bios.date: 07/01/2013
  dmi.bios.vendor: HP
  dmi.bios.version: J01
  dmi.chassis.type: 7
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrJ01:bd07/01/2013:svnHP:pnProLiantML110G7:pvr:cvnHP:ct7:cvr:
  dmi.product.name: ProLiant ML110 G7
  dmi.sys.vendor: HP

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