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[Tommy_CZ <1402386@xxxxxxxxxxxxxxxxxx>]

It seems upgraded kernel has serious issues with AMD GPUs, probably same
problem is here: http://askubuntu.com/questions/560350/boot-hangs-after-
upgrade-to-kernel-3-13-0-43

Athlon 5150 with radeon R3 (HD8400). Black screen, system freeze during
boot, started after upgrade of Ubuntu (this upgrade is included into
installation of Ubuntu(!!!) )

The worse is, the kernel 3.16.0-28 is also plagued by this bug.

This bug cripples the upgrade-enabled installation of Ubuntu on AMD CPUs
with GPUs ! Critical!

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https://bugs.launchpad.net/bugs/1402386

Title:
  New kernel causes black screen after login

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  New kernel causes black screen after login, I cannot use it nor switch to ttyX.
  It came as regular upgrade during installation of Ubuntu.
  Downgrade to kernel 3.13.0-32-generic is a workaround.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-generic 3.13.0.43.50
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  zabava     2173 F.... pulseaudio
   /dev/snd/controlC2:  zabava     2173 F.... pulseaudio
   /dev/snd/controlC0:  zabava     2173 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Dec 14 14:22:01 2014
  HibernationDevice: RESUME=UUID=26dc94e4-a3a2-4d85-81c3-f7b77a41b5b1
  InstallationDate: Installed on 2014-12-14 (0 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: ASUS All Series
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=447ed435-5a74-44ce-996f-7a6fc4f83b70 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.10
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/11/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0602
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: AM1I-A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0602:bd07/11/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnAM1I-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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