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[John Hupp <launchpad@xxxxxxxxxxxxxx>]

I have seen the issue with any Flash content I encountered.

But to reproduce it, as far as I know you need to be using one of the
affected Intel graphics chipsets.  The machine I was reporting from has
an 845G chipset.  It has also been reported for 855G and 865G (see
http://ubuntuforums.org/showthread.php?t=2132368, and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178982 Comment
#21).

In addition, from what I have read all of the affected machines are
Dell's, but that may be a simple consequence of the popularity of those
Dell PC's.  (I have 4 Dell Dimension 2400's here and several more near
cousins.)

In my thread on the Lubuntu email list, one regular on the list said
"all of my older Dell machines have the problem."  (OK, that's verging
toward hearsay.)

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https://bugs.launchpad.net/bugs/1212455

Title:
  8086:2562 Flash 11.2 content displays in shades of green and purple
  only, and in a horizontally compressed space

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  In my testing with the Intel driver using its default acceleration:
  - Flash 11.2 works on Quantal with the 3.5 kernel
  - Flash 11.2 works on Raring with the 3.5.0-17 kernel (though it boots to a low-res desktop with a frozen pointer)
  - Flash 11.2 works on Raring also with the 3.6.11-030611 or 3.7.10-030710 mainline kernels
  - Flash 11.8 works on Raring with the 3.8 kernel (in Chrome)
  - Flash 11.2 fails on Raring with the 3.8 kernel
  - Flash 11.2 fails on Raring with the latest mainline kernel, 3.11.0-031100rc5
  - Flash 11.2 fails on Saucy alpha 2 with its default kernel

  Disabling Flash *hardware* acceleration altogether (via R-click in the
  Flash display window: Settings: General tab) did not fix the problem.

  WORKAROUND: Setting the Intel driver's acceleration method to UXA
  rather than its default SNA *always* fixes the Flash problem, but
  causes a garbled login screen under LightDM that so far has no
  workaround.

  I also tried one possible fix for the default Intel SNA acceleration using the TearFree option.   I created /etc/X11/xorg.conf.d/20-intel.conf with contents:
      Section "Device"
         Identifier  "Intel Graphics"
         Driver      "intel"
         Option      "AccelMethod"  "sna"
         Option      "TearFree"    "true"
      EndSection
  But this had no effect.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-27-generic 3.8.0-27.40
  ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4
  Uname: Linux 3.8.0-27-generic i686
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  user1      1467 F.... lxpanel
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  CurrentDmesg:
   [   72.390428] serial8250: too much work for irq17
   [   72.401696] serial8250: too much work for irq17
   [   72.411724] serial8250: too much work for irq17
   [   82.046726] serial8250: too much work for irq17
  Date: Wed Aug 14 17:39:10 2013
  HibernationDevice: RESUME=UUID=8adf1633-c1a8-4392-8fc3-44369bc85692
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Dell Computer Corporation Dimension 2400
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-27-generic root=UUID=a41f2f68-7642-46f9-88d8-08a656c1c40d ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-27-generic N/A
   linux-backports-modules-3.8.0-27-generic  N/A
   linux-firmware                            1.106
  RfKill:

  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/02/2003
  dmi.bios.vendor: Dell Computer Corporation
  dmi.bios.version: A05
  dmi.board.name: 0F5949
  dmi.board.vendor: Dell Computer Corp.
  dmi.board.version: A01
  dmi.chassis.type: 15
  dmi.chassis.vendor: Dell Computer Corporation
  dmi.modalias: dmi:bvnDellComputerCorporation:bvrA05:bd12/02/2003:svnDellComputerCorporation:pnDimension2400:pvr:rvnDellComputerCorp.:rn0F5949:rvrA01:cvnDellComputerCorporation:ct15:cvr:
  dmi.product.name: Dimension 2400
  dmi.sys.vendor: Dell Computer Corporation

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