Public bug reported:

I had a few tabs in chromium opened, I watched to 
http://www.youtube.com/watch?v=Z7Wl2FW2TcA, I have changed time to about 7:50 
and wanted to make full screen. Then the screen goes black. Only when I fast 
moved mouse, then in some places (randomly, but still all of screen was 
corrupted) of screen I could  have seen normal screen.
For bug report I changed virtual terminal via ctrl-alt-F1, logged in and typed 
apport-bug.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xorg 1:7.7+1ubuntu5
ProcVersionSignature: Ubuntu 3.11.0-7.14-generic 3.11.1
Uname: Linux 3.11.0-7-generic i686
ApportVersion: 2.12.4-0ubuntu1
Architecture: i386
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
Date: Sun Sep 22 11:50:47 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0106] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0649]
 NVIDIA Corporation GF117M [GeForce 610M/710M / GT 620M/625M/630M/720M] 
[10de:1140] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] GeForce GT 620M [1025:064a]
InstallationDate: Installed on 2013-09-18 (3 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130917)
MachineType: Acer Aspire E1-531G
MarkForUpload: True
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-7-generic 
root=UUID=f0457e45-8d5b-43a6-adf1-aa45664ab5a7 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
 Section "ServerFlags"
         Option "NoTrapSignals" "true"
 EndSection
dmi.bios.date: 10/15/2012
dmi.bios.vendor: Acer
dmi.bios.version: V2.07
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: EA50_HC_HR
dmi.board.vendor: Acer
dmi.board.version: Type2 - Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V2.07
dmi.modalias: 
dmi:bvnAcer:bvrV2.07:bd10/15/2012:svnAcer:pnAspireE1-531G:pvrV2.07:rvnAcer:rnEA50_HC_HR:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.07:
dmi.product.name: Aspire E1-531G
dmi.product.version: V2.07
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Sun Sep 22 10:35:17 2013
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs: Output                                                  XMIR-1 
         XMIR-2          XMIR-3
xserver.version: 2:1.14.2.901-2ubuntu4
xserver.video_driver: intel

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


** Tags: apport-bug corruption i386 saucy ubuntu xmir

** Tags added: xmir

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https://bugs.launchpad.net/bugs/1228816

Title:
  Screen corruption on youtube flash video in chromium on xmir enabled
  system

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