compiz team mailing list archive

[Bryce Harrington <877438@xxxxxxxxxxxxxxxxxx>]

** Description changed:

+ When Unity/Compiz is running with the -nvidia driver and two monitors
+ are connected, compiz and/or Xorg will consume CPU time  (50-90% typ.)
+ with window activity (opening large numbers of windows, resizing,
+ moving, etc.)
+ 
+ Disabling "Sync to VBlank" appears not to help.
+ 
+ Duplicate bug #737454 suggests it may be an issue specific to the NVIDIA
+ 8xxx series cards with large resolution sizes.
+ 
+ [Workarounds]
+ The issue can be reliably worked around by either disabling one of the displays, or disabling the Unity Plugin in CompizConfig Settings Manager
+ 
+ The nouveau driver on the same hardware typically does not have the
+ performance issue (but may have other issues such as stability,
+ rendering it not a valid workaround).
+ 
+ Some have reported that upgrading to -nvidia 290.03 solves the problem;
+ others report it has no effect.  See
+ http://www.nvnews.net/vbulletin/showthread.php?p=2493300
+ 
+ Some have reported that lowering the external monitor resolution to
+ match the laptop LVDS resolution brings performance to acceptable
+ levels.
+ 
  Description:	Ubuntu 11.10
  Release:	11.10
  --
  xorg:
    Installed: 1:7.6+7ubuntu7
    Candidate: 1:7.6+7ubuntu7
    Version table:
   *** 1:7.6+7ubuntu7 0
          500 http://se.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
          100 /var/lib/dpkg/status
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xorg 1:7.6+7ubuntu7
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  280.13  Wed Jul 27 16:53:56 PDT 2011
   GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
  .tmp.unity.support.test.0:
  
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,place,imgpng,gnomecompat,vpswitch,regex,resize,grid,mousepoll,scale,move,session,animation,unitymtgrabhandles,workarounds,wall,expo,ezoom,unityshell]
  CompositorRunning: compiz
  Date: Tue Oct 18 11:08:19 2011
  DistUpgraded: Log time: 2011-10-14 08:32:51.288330
  DistroCodename: oneiric
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia-current, 285.05.09, 3.0.0-12-generic, x86_64: installedError! Could not locate dkms.conf file.
   File:  does not exist.
  
   nvidia-current-updates, 280.13, 3.0.0-12-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GraphicsCard:
   nVidia Corporation G86 [Quadro NVS 290] [10de:042f] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: nVidia Corporation Device [10de:0492]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  JockeyStatus:
   kmod:nvidia_173 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
   kmod:nvidia_173_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
   kmod:nvidia_current_updates - nvidia_current_updates (Proprietary, Enabled, Not in use)
   kmod:nvidia_current - nvidia_current (Proprietary, Enabled, Not in use)
  MachineType: Hewlett-Packard HP Compaq dc7800p Small Form Factor
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=f5c340d9-f04b-4bcd-b714-909faceebfda ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to oneiric on 2011-10-14 (4 days ago)
  dmi.bios.date: 07/18/2007
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 786F1 v01.04
  dmi.board.asset.tag: CZC8378X1V
  dmi.board.name: 0AA8h
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: CZC8378X1V
  dmi.chassis.type: 4
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.04:bd07/18/2007:svnHewlett-Packard:pnHPCompaqdc7800pSmallFormFactor:pvr:rvnHewlett-Packard:rn0AA8h:rvr:cvnHewlett-Packard:ct4:cvr:
  dmi.product.name: HP Compaq dc7800p Small Form Factor
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu3
  version.ia32-libs: ia32-libs 20090808ubuntu26
  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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  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 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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https://bugs.launchpad.net/bugs/877438

Title:
  Unity/compiz has sluggish performance on dual-head with nvidia driver

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