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[janl <janl@xxxxxxxxxxxxx>]

Public bug reported:

After upgrading my two laptops (HP EliteBook 8470p, Sony Vaio, both
several years old) to 15.10 both started freezing within 12 hours of
booting and the screens started flickering when X did fade-out and fade-
ins.

Booting the HP with the 15.04 kernel (3.19.0-31) makes it stable again.
The sony vaoi was downgraded to 14.04 and is stable there.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
Uname: Linux 3.19.0-31-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Nov 12 11:34:25 2015
InstallationDate: Installed on 2013-11-07 (734 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to wily on 2015-10-26 (16 days ago)

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kubuntu wily

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https://bugs.launchpad.net/bugs/1515551

Title:
  Several laptops unstable with 15.10 kernels

Status in xorg package in Ubuntu:
  New

Bug description:
  After upgrading my two laptops (HP EliteBook 8470p, Sony Vaio, both
  several years old) to 15.10 both started freezing within 12 hours of
  booting and the screens started flickering when X did fade-out and
  fade-ins.

  Booting the HP with the 15.04 kernel (3.19.0-31) makes it stable
  again. The sony vaoi was downgraded to 14.04 and is stable there.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-31-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Nov 12 11:34:25 2015
  InstallationDate: Installed on 2013-11-07 (734 days ago)
  InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to wily on 2015-10-26 (16 days ago)

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