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[bugbot <741284@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xorg
  
  I recently upgraded to Maverick and since then the graphics performance of certain 2D programs severely degraded. Especially programs that use wxMathplot with real-time plot updates are affected and show very high CPU on the xorg process and much lower responsiveness of the application.
  When I run the same program within Xephyr, the CPU load is much less, also when I run it under ms-windows in VirtualBox. I have tried the stable ppa update for xorg-intel, but this didn't make much difference.
  
  I have done performance analysis with oprofile (on my own applications
  that uses 10 wxMathplot plots) and found that the the kernel (55%) and
  libdrm_intel (15%) are eating most of the CPU time.
  
  I created a slightly modified version of sample3 of wxMathplot that
  shows the CPU impact of 2D operations. Directly under X, CPU usage is as
  follows: 53% for Xorg and 14% for mpSample3. Under Xephyr, CPU usage is
  10% for xorg, 15% for mpSample3 and 11% for Xephyr. I'll attach the
  source of this modified sample, and if required more of the oprofile
  log.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.35-28.49-generic 2.6.35.11
  Uname: Linux 2.6.35-28-generic i686
  Architecture: i386
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1366x768
   edid-base64: AP///////wAGr+wgAAAAAAESAQOAIhN4CldVnFpUnSYaUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWQlAAJjAgGDQAWMEQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTU2WFcwMiBWMCAKAF8=
  DRM.card0.VGA.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1680x1050 1680x1050 1280x1024 1280x1024 1440x900 1440x900 1280x960 1152x864 1024x768 1024x768 832x624 800x600 800x600 800x600 640x480 640x480 720x400
   edid-base64: AP///////wAebXdWUEUDAAMUAQNqMSB46q7FoldKnCUSUFSna4CVD5UAgYCBQHFPAQEBAQEBfC6QoGAaHkAwIDYA2igRAAAaITmQMGIaJ0BosDYA2igRAAAcAAAA/QA4Sx5TDwAKICAgICAgAAAA/ABXMjI0MgogICAgICAgAK4=
  Date: Wed Mar 23 21:13:46 2011
  InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
  MachineType: Hewlett-Packard Compaq 610
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic root=UUID=72a7f734-513b-40d0-9cbe-cc16ffb4239a ro quiet splash
  ProcEnviron:
   LC_TIME=nl_NL.UTF-8
   PATH=(custom, user)
   LANG=C
   SHELL=/bin/bash
   LC_PAPER=A4
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 12/17/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PVU Ver. F.0D
  dmi.board.name: 308A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 26.08
  dmi.chassis.asset.tag: CNU0064GLG
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68PVUVer.F.0D:bd12/17/2009:svnHewlett-Packard:pnCompaq610:pvrF.0D:rvnHewlett-Packard:rn308A:rvrKBCVersion26.08:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: Compaq 610
  dmi.product.version: F.0D
  dmi.sys.vendor: Hewlett-Packard
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       i686
   kernel:             2.6.35-28-generic
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller [8086:2a12] (rev 0c) (prog-if 00 [VGA controller])
+     	Subsystem: Hewlett-Packard Company Device [103c:308a]

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https://bugs.launchpad.net/bugs/741284

Title:
  severe 2D performance degradation after upgrade to Maverick