compiz uses high cpu usage when seconday monitor is plugged in during logging in

[Amir]

This is ongoing issue that I've been having since 12.04. Now I'm on 14.04 the issue still persist.

On my netbook which runs on Intel GMA 3150 graphic video, if I log into my account while secondary monitor plugged in, it's almost guaranteed that compiz process will go wild and take unusually high cpu usage than normal, rendering desktop to crawl even when doing simple thing like hovering mouse pointer over launcher icon.

However I'm not seeing this problem if I plug the secondary monitor only after Ive already logged into my user account.

I've been doing that as workaround to this problem though it's not very convenience having to unplug and replug the monitor at every boot up/reboot.

Can someone please look into this?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.7
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Feb 24 17:48:46 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus: vboxhost, 4.3.22, 3.13.0-45-generic, i686: installed
EcryptfsInUse: Yes
GraphicsCard:
 Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:a001]
   Subsystem: Intel Corporation Device [8086:a001]
InstallationDate: Installed on 2014-04-01 (328 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily i386 (20140331)
MachineType: Intel Corporation Pine Trail - M CRB
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic root=UUID=cb7acec2-e0c5-4138-beb9-da46e06eaa8e ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/29/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.asset.tag: PTL Nanjing
dmi.board.name: Pine Trail - M CRB
dmi.board.vendor: Intel Corporation
dmi.board.version: Revision A
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/29/2010:svnIntelCorporation:pnPineTrail-MCRB:pvrRevisionA:rvnIntelCorporation:rnPineTrail-MCRB:rvrRevisionA:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: Pine Trail - M CRB
dmi.product.version: Revision A
dmi.sys.vendor: Intel Corporation
version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
version.libdrm2: libdrm2 2.4.56-1~ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Tue Feb 24 16:00:04 2015
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 17
 vendor INL
xserver.version: 2:1.15.1-0ubuntu2.7