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https://bugs.launchpad.net/bugs/855124

Title:
  XRANDR operations very slow unless (phantom) HDMI1 disabled

Status in The Linux Kernel:
  Fix Released
Status in The Ubuntu Boot Speed Project:
  Invalid
Status in “linux” package in Ubuntu:
  Fix Released
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Invalid
Status in “linux” source package in Oneiric:
  Invalid
Status in “xserver-xorg-video-intel” source package in Oneiric:
  Invalid
Status in “linux” source package in Precise:
  Fix Released
Status in “xserver-xorg-video-intel” source package in Precise:
  Invalid

Bug description:
  Any operation that probes stuff over XRANDR is really slow. Running
  just "xrandr" takes slightly less than 4 seconds. A bit of
  experimentation reveals that adding:

  Section "Monitor"
          Identifier "HDMI1"
          Option "Ignore" "True"
  EndSection

  ...to xorg.conf fixes it. I have no HDMI ports at all, so this is not
  a problem.

  Only HDMI1 seems to be the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xorg 1:7.6+7ubuntu7
  ProcVersionSignature: Ubuntu 3.0.0-11.17-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.22.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,resize,snap,vpswitch,gnomecompat,imgpng,grid,unitymtgrabhandles,compiztoolbox,move,regex,mousepoll,animation,place,workarounds,session,expo,wall,ezoom,fade,scale,unityshell]
  CompositorRunning: None
  Date: Wed Sep 21 00:10:26 2011
  DistUpgraded: Log time: 2011-08-09 13:47:39.295432
  DistroCodename: oneiric
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller 
[8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:20e4]
     Subsystem: Lenovo Device [17aa:20e4]
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100202)
  MachineType: LENOVO 7465CTO
  ProcEnviron:
   PATH=(custom, user)
   LANG=da_DK.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic 
root=UUID=9c822cf3-46f9-426f-9fab-13ba9053c1ef ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', 
'-f'] failed with exit code -11:
  UpgradeStatus: Upgraded to oneiric on 2011-08-09 (42 days ago)
  dmi.bios.date: 05/16/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6DET70WW (3.20 )
  dmi.board.name: 7465CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr6DET70WW(3.20):bd05/16/2011:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7465CTO
  dmi.product.version: ThinkPad X200s
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu20
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

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