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[Heineken <1503927@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The first restart after Kernel upgrade to 3.19.0-31 this morning, the
computer freezes when showing the graphical login-screen. Num-lock key
is non-responsive, hard reset is required. System is equipped with
Cypress XT [Radeon HD 5870] and runs the open source radeon driver.

Sometimes only  a black screen is shown and the system freezes, sometime
the Scroll-lock and Caps-lock keys are blinking (kernel-panik).

Starting the system with kernel version 3.16.0-36, it's rock-solid.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-signed-image-3.19.0-30-generic (not installed)
ProcVersionSignature: Ubuntu 3.16.0-36.48-generic 3.16.7-ckt9
Uname: Linux 3.16.0-36-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Oct  8 09:28:08 2015
InstallationDate: Installed on 2015-01-28 (252 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-signed (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug vivid

** Description changed:

  The first restart after Kernel upgrade to 3.19.0-31 this morning, the
  computer freezes when showing the graphical login-screen. Num-lock key
  is non-responsive, hard reset is required. System is equipped with
- Cypress XT [Radeon HD 5870].
+ Cypress XT [Radeon HD 5870] and runs the open source radeon driver.
  
  Sometimes only  a black screen is shown and the system freezes, sometime
  the Scroll-lock and Caps-lock keys are blinking (kernel-panik).
  
  Starting the system with kernel version 3.16.0-36, it's rock-solid.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-signed-image-3.19.0-30-generic (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-36.48-generic 3.16.7-ckt9
  Uname: Linux 3.16.0-36-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Oct  8 09:28:08 2015
  InstallationDate: Installed on 2015-01-28 (252 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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Packages, which is subscribed to linux-signed in Ubuntu.
https://bugs.launchpad.net/bugs/1503927

Title:
  System Freeze with Kernel 3.19.0 after graphics startup (radeon)

Status in linux-signed package in Ubuntu:
  New

Bug description:
  The first restart after Kernel upgrade to 3.19.0-31 this morning, the
  computer freezes when showing the graphical login-screen. Num-lock key
  is non-responsive, hard reset is required. System is equipped with
  Cypress XT [Radeon HD 5870] and runs the open source radeon driver.

  Sometimes only  a black screen is shown and the system freezes,
  sometime the Scroll-lock and Caps-lock keys are blinking (kernel-
  panik).

  Starting the system with kernel version 3.16.0-36, it's rock-solid.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-signed-image-3.19.0-30-generic (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-36.48-generic 3.16.7-ckt9
  Uname: Linux 3.16.0-36-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Oct  8 09:28:08 2015
  InstallationDate: Installed on 2015-01-28 (252 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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