Public bug reported:

My system freezes (sometimes completely, sometimes I am able to recover
by restarting LightDM) when playing a video using mplayer in full screen
(in either Gnome Mplayer, Smplayer, etc.), after the recent Intel SNA by
default change. Note that I'm using mplayer with hardware acceleration
enabled (with va-api for Intel graphics).

My system is a Dell XPS 17 L702X using the following graphics: NVIDIA
GeForce GT 555M 3GB with Optimus technology and Intel(R) Sandybridge
Mobile - 2nd Generation Core Processor Family Integrated Graphics
Controller, running Ubuntu 13.04 Raring Ringtail 64bit.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-1.5-generic 3.8.0-rc4
Uname: Linux 3.8.0-1-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.8-0ubuntu2
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
CompositorRunning: compiz
Date: Mon Jan 21 23:36:59 2013
DistUpgraded: 2013-01-12 16:20:44,289 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0571]
 NVIDIA Corporation Device [10de:124d] (rev ff) (prog-if ff)
InstallationDate: Installed on 2012-12-30 (22 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Dell Inc. Dell System XPS L702X
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-1-generic 
root=UUID=1cd2fc4f-7d99-4c7a-8ea7-6f9a2d4e5960 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to raring on 2013-01-12 (9 days ago)
dmi.bios.date: 11/11/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 0XN71K
dmi.board.vendor: Dell Inc.
dmi.board.version: FAB1
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: 
dmi:bvnDellInc.:bvrA14:bd11/11/2011:svnDellInc.:pnDellSystemXPSL702X:pvr:rvnDellInc.:rn0XN71K:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L702X
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.9~daily13.01.21-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.41-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.1-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.1-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.1.901-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.19-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu1

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


** Tags: amd64 apport-bug compiz-0.9 raring running-unity third-party-packages 
ubuntu

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https://bugs.launchpad.net/bugs/1102654

Title:
  full screen video crashes after Intel SNA enabled by default

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