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[Launchpad Bug Tracker <1123024@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1123024

Title:
  [Sony VAIO SVE1512Y1ESI] Screen flickering at login screen

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  On a Sony Vaio E-series with a Radeon HD7650M graphics card the screen starts flickering black at login screen (I'm using Ubuntu 12.10 with the last updates).
  It's only a video-issue: apart from this Ubuntu is properly running.

  I discovered a dirty workaround for the problem: when screen starts
  flickering, if I close the laptop lid and wait about 10s for the
  system to enter sleep/standby mode, after I open it again and resume
  the pc from sleep/standby the problem disappears until next system
  boot (even if i launch 3d-stuff like "extremetuxracer" there's no
  problem until next boot).

  Other people are writing about (apparently) the same problem on AskUbuntu:
  http://snurl.com/26daxey

  The problem exists only with kernel versions >=3.6.10
  (and still persists in the last mainline kernel - 3.9.0-rc2 last time I tried).

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2
  Uname: Linux 3.5.0-22-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Tue Feb 12 12:54:23 2013
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Advanced Micro Devices [AMD] nee ATI Thames [Radeon 7500M/7600M Series] [1002:6841] (prog-if 00 [VGA controller])
     Subsystem: Sony Corporation Device [104d:90ab]
  InstallationDate: Installed on 2013-01-18 (24 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Sony Corporation SVE1512Y1ESI
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=it:en
   TERM=unknown
   PATH=(custom, no user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-22-generic root=UUID=d2b13271-2540-4740-b740-85b725579524 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/30/2012
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: R0150D5
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnInsydeCorp.:bvrR0150D5:bd08/30/2012:svnSonyCorporation:pnSVE1512Y1ESI:pvrC10FN8RZ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVE1512Y1ESI
  dmi.product.version: C10FN8RZ
  dmi.sys.vendor: Sony Corporation
  version.compiz: compiz 1:0.9.8.6-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.39-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3

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