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Revision 24 as of 2007-12-25 19:56:01
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  *for nvidia drivers prior to the 100.xx drivers. {{{
 Option "AddARGBGLXVisuals" "True" in Section "Screen"
  

This page needs a suitable introductory statement. It also has sections in need of completion.

TableOfContents

Supported Cards

CompizFusion requires compatible hardware with driver support and sufficient performance.

Tested OK

Cards tested to work, driver required, and performance notes:

  • (card / driver / notes)

Compatible Specs

Cards theoretically compatible by specs, driver required, and performance notes:

  • (card / driver / notes)

Tested FAIL

Cards tested to fail, driver(s) tested, and specific failures:

  • (card / driver(s) / notes)

Available Drivers

  • Legacy (1.0.7xxx)

  • New Legacy (1.0.96xx)

  • Latest (1.0.97xx - 100.x.x)

System Setup

For information about which drivers can run Xorg (using the nvidia driver) and which can run Xgl, see ["Setup"].

Additional Configuration

Some of the following options may be worth trying to improve performance or fix bugs:

  • This option is not really needed with newer drivers as it is enabled by default in versions 9746 and newer.

     Option "RenderAccel" "True" 
  • This option helps performance. It is currently incompatible with SLI and MultiGPU modes.

     Option "DamageEvents" "True"
  • Use this option with caution as it may not work on all systems.

     Option "UseEvents" "False" 
  • Do NOT use this option if you have less than 128MB of video RAM, and always use it with Sync2Vblank enabled in nvidia-settings both for OpenGL and XV.

     Option "TripleBuffer" "True" 
  • Use this options with caution as it may not work on all systems, especially with 6 series GeForce cards (it is known to cause freezes with compiz) but give it a try because it helps performance. It can also break Xinerama.

     Option "BackingStore" "True" 

    The BackingStore option is an Xorg option, not an nVidia option. It is used to enable the server's support for backing store, a mechanism by which pixel data for occluded window regions is remembered by the server thereby alleviating the need to send expose events to X clients when the data needs to be redisplayed. Note that this can significantly increase performance in nVidia TwinView setups.

{i} For further documentation on these settings please refer to the readme file of the particular Nvidia driver you are using. The README file for driver version 100.14.19 can be found here: http://us.download.nvidia.com/XFree86/Linux-x86/100.14.19/README/appendix-b.html

Setting up nvidia-settings to start on login

This information is intended to help you start nvidia-settings options on login.

We can set AA and FSAA settings using an export command in various locations, including the following:

  • manually in a terminal after login
  • in one of the following files:
    • /etc/init.d/xdm

    • /etc/profile

    • /etc/env.d/03opengl

    • /home/user/.bashrc

However, this does not help us with the other options available to us in nvidia-settings, including Cursor Shadows, Vibrance Controls, and others.

To address this issue, it is possible to execute the settings file itself in /home/user/.bashrc. To accomplish this, you will need to have nvidia-settings installed. It can then be used to set the desired options. Once this is done, edit your local /home/user/.bashrc file and add the following near the top of the file:

if [ $DISPLAY ] && [ $TERM == "dumb" ]; then
# Load nvidia-settings
nvidia-settings -load-config-only > /dev/null 2>&1
fi

Keep in mind this can also be added to /etc/init.d/xdm or /etc/profile to make the settings global; however, your settings file would also have to be in /root, making this second approach less than ideal.

There is also a Texture Filtering option in ["CCSM"] which can be adjusted. In CCSM, go to [:GeneralOptions:General Options] --> Display Settings --> Texture Filter --> Best.

Finding the correct settings for your card

The vsync, AA and, FSAA settings can be found in the [http://us.download.nvidia.com/XFree86/Linux-x86/100.14.19/README/chapter-11.html README] file for your driver.

To understand these settings and figure out how best to set them, pages 9 through 11 of the following guide are recommended: http://www.tweakguides.com/Graphics_1.html

(!) When FSAA is enabled (the __GL_FSAA_MODE environment variable is set to a value that enables FSAA and a multisample visual is chosen), the rendering may be corrupted when resizing the window.

Hardware/NVIDIA (last edited 2010-07-27 05:24:55 by 124-169-107-122)