Public bug reported:

after some hours or minutes of using, I am seeing corruption of the screen 
making the computer unusable.
in my case the display gets blank or some vertical stripes are shown.


PS: this bug may or may not related to: #1043328

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xorg 1:7.7+1ubuntu4
Uname: Linux 3.6.0-999-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.6.1-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Wed Oct  3 16:10:59 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RS780D [Radeon HD 3300] [1002:9614] 
(prog-if 00 [VGA controller])
   Subsystem: Advanced Micro Devices [AMD] nee ATI Device [1002:0000]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Phoenix Technologies RS780+SB700
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.6.0-999-generic 
root=/dev/mapper/vg1-root ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/09/2009
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: LP JR 790GX-M3H5
dmi.board.vendor: DFI Inc.
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: Phoenix Technologies
dmi.chassis.version: RS780+SB700
dmi.modalias: 
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd04/09/2009:svnPhoenixTechnologies:pnRS780+SB700:pvr12345678:rvnDFIInc.:rnLPJR790GX-M3H5:rvr1.0:cvnPhoenixTechnologies:ct3:cvrRS780+SB700:
dmi.product.name: RS780+SB700
dmi.product.version: 12345678
dmi.sys.vendor: Phoenix Technologies
version.compiz: compiz 1:0.9.8.4-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39+git20120918.2426a6a7-0ubuntu0ricotz2
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1~git20121002.df4a88ac-0ubuntu0ricotz
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 
9.1~git20121002.df4a88ac-0ubuntu0ricotz
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1~git20121002.df4a88ac-0ubuntu0ricotz
version.xserver-xorg-core: xserver-xorg-core 
2:1.13.0+git20120920.70e57668-0ubuntu0ricotz
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.99.99+git20120928.e8cb0b72-0ubuntu0sarvatt
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.20.9+git20121001.51202798-0ubuntu0sarvatt
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.2+git20120928.5c9379b1-0ubuntu0sarvatt

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


** Tags: amd64 apport-bug compiz-0.9 quantal third-party-packages ubuntu

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https://bugs.launchpad.net/bugs/1060987

Title:
  corrupt screen both in terminal (KMS) and in X with HD3300

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