slow fade effects make unity completely unusable

[Redmar]

A fresh install of ubuntu 13.10 is completely unusable on my Acer Aspire One netbook. All fade effects are extremely slow, which makes the whole desktop slow to a crawl. Because fade effects are present in both the dash and the HUD, ubuntu is not usable. It takes over 2 full minutes with the cpu at 100% for compiz to open the dash, opening the HUD takes slightly shorter, around 30 seconds.

WORKAROUND:
Use unity-tweak-tool to disable blur alltogether via Search -> General -> Background blur -> Off

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: unity 7.1.1+13.10.20131004-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3
Uname: Linux 3.11.0-11-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.12.5-0ubuntu1
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: Sun Oct 6 16:28:07 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller [8086:a011] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0590]
   Subsystem: Acer Incorporated [ALI] Device [1025:0590]
InstallationDate: Installed on 2013-10-06 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta i386 (20131004)
Lsusb:
 Bus 001 Device 002: ID 0402:7675 ALi Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 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 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Acer AOD257
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-11-generic root=UUID=b9824081-a4a0-4fed-b9e8-43c47c774da8 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/21/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.15
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE06_PT
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.15:bd10/21/2011:svnAcer:pnAOD257:pvrV1.15:rvnAcer:rnJE06_PT:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: AOD257
dmi.product.version: V1.15
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.10+13.10.20131004-0ubuntu1
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu9
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.903-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Sun Oct 6 18:26:13 2013
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 24786
 vendor AUO
xserver.version: 2:1.14.3-3ubuntu1

[Christopher Townsend (townsend)]

Hi Redmar,

Thank you for reporting this bug. This is a duplicate of bug #1222602 which is an issue in Mesa 9.2. The change that caused this issue in Mesa should be reverted soon.