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[Bug 1509044] [NEW] Tearing in Chrome/Chromium fullscreen video playback


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Example video: https://youtu.be/ZCPkOpMHB7g (HTML5 player)

lspci -vvv|grep -A 12 "VGA compatible"
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
	Subsystem: Dell Device 01da
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 43
	Region 0: Memory at fea00000 (32-bit, non-prefetchable) [size=1M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at ecb8 [size=8]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

After I added this in 
/etc/X11/xorg.conf.d/20-intel.conf, tearing disappeared in Firefox, but not in Chromium:

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "TearFree"    "true"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: chromium-browser 45.0.2454.101-0ubuntu0.
ProcVersionSignature: Ubuntu 3.13.0-66.108-lowlatency 3.13.11-ckt27
Uname: Linux 3.13.0-66-lowlatency x86_64
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Oct 22 21:23:32 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-09-21 (396 days ago)
InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
Load-Avg-1min: 1.55
Load-Processes-Running-Percent:   0.2%
MachineType: Dell Inc. OptiPlex 745
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-66-lowlatency root=UUID=d012c1bd-7e56-4035-b321-38d20cb14421 ro quiet splash vt.handoff=7
SourcePackage: chromium-browser
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.6.6
dmi.board.name: 0RF703
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.6.6:bd06/26/2011:svnDellInc.:pnOptiPlex745:pvr:rvnDellInc.:rn0RF703:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 745
dmi.sys.vendor: Dell Inc.
gconf-keys: /desktop/gnome/applications/browser/exec = b'firefox\n'/desktop/gnome/url-handlers/https/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/https/enabled = b'true\n'/desktop/gnome/url-handlers/http/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/http/enabled = b'true\n'/desktop/gnome/session/required_components/windowmanager = b''/apps/metacity/general/compositing_manager = b''/desktop/gnome/interface/icon_theme = b'elementary-xfce-dark\n'/desktop/gnome/interface/gtk_theme = b'Greybird\n'
modified.conffile..etc.default.chromium.browser: [deleted]
mtime.conffile..etc.chromium.browser.default: 2014-09-28T10:04:54.426898

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

** Tags: amd64 apport-bug trusty
Tearing in Chrome/Chromium fullscreen video playback
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