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[Pierre <1475914@xxxxxxxxxxxxxxxxxx>]

apport information

** Attachment added: "IwConfig.txt"
   https://bugs.launchpad.net/bugs/1475914/+attachment/4475854/+files/IwConfig.txt

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https://bugs.launchpad.net/bugs/1475914

Title:
  login freezes or black screen with kernel higher than 3.19.0-15

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Env :
  Linux 3.19.0-22-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
  VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X]
  using xorg default driver (not the proprietary)

  Facts :
  - On the login page, just after the boot, the system is freezed (or looping)
  - I can't open a terminal with Ctrl+Alt+F1
  - When I choose a previous kernel version from Grub, the problem occurs with all versions I had installed since 3.19.0-16
  3.19.0-15   OK
  3.19.0-16   KO
  3.19.0-18   KO
  3.19.0-20   KO
  3.19.0-21   KO
  3.19.0-22   KO
  - When I choose the recovery mode of the version that have the problem, the recovery menu freezes also (see attachment)
  - I've done a clean install on a new disk and after the update of the kernel (3.19.0-15 -> 3.19.0-22) I have a black screen after the boot (no login screen). And I have the same problem trying the recovery mode with version 3.19.0-22.
  --- 
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pierre     3474 F.... pulseaudio
   /dev/snd/controlC1:  pierre     3474 F.... pulseaudio
  CRDA:
   country AM: DFS-ETSI
   	(2402 - 2482 @ 40), (N/A, 20), (N/A)
   	(5170 - 5250 @ 80), (N/A, 18), (N/A)
   	(5250 - 5330 @ 80), (N/A, 18), (0 ms), DFS
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=230b9245-44d0-4fc5-8440-be65b66292a9
  InstallationDate: Installed on 2015-07-07 (81 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: MSI MS-7640
  NonfreeKernelModules: fglrx
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-28-generic root=UUID=fc6a9894-1b64-48bd-91ad-f545051a1773 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-28-generic N/A
   linux-backports-modules-3.19.0-28-generic  N/A
   linux-firmware                             1.143.3
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  vivid
  Uname: Linux 3.19.0-28-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/08/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V19.9
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: 990FXA-GD65 (MS-7640)
  dmi.board.vendor: MSI
  dmi.board.version: 3.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 3.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV19.9:bd10/08/2012:svnMSI:pnMS-7640:pvr3.0:rvnMSI:rn990FXA-GD65(MS-7640):rvr3.0:cvnMSI:ct3:cvr3.0:
  dmi.product.name: MS-7640
  dmi.product.version: 3.0
  dmi.sys.vendor: MSI

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