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[madbiologist <1234565@xxxxxxxxxxxxxxxxxx>]

** Also affects: mesa via
   https://bugs.freedesktop.org/show_bug.cgi?id=70322
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1234565

Title:
  serious opengl bug in 13.04

Status in Mesa:
  Unknown
Status in mesa package in Ubuntu:
  New

Bug description:
  Tested on two notebooks.
  Bug appears only in the 13.04 version. 12.10 is OK.
  Dubblechecked by booting a 12.10 version on USB stick (on the 13.04 notebooks).
  Problem:
  OpenGl shading language (GLSL) uniform variables seem to stay undefined, or lose their value somewhere.
  Tested with a WebGl app as well as a C++ (Qt) application.
  This bug is also reported a driver issue.
  If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04?
  thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
  Uname: Linux 3.8.0-31-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Thu Oct  3 10:02:20 2013
  DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job
  DistroCodename: raring
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:058b]
  InstallationDate: Installed on 2013-08-21 (42 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to raring on 2013-09-19 (13 days ago)
  dmi.bios.date: 05/15/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu36
  version.libdrm2: libdrm2 2.4.43-0ubuntu1.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1

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