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Compiz + Nouveau in Beta2

Now that we are all aware of the output of Ubuntu Beta2 we Lucid Lynx to see how we use one of its main novelties, free driver for nVidia graphics,
nouveau, with compiz

. By default the nouveau driver offers Composite extension , responsible for a large number of cosmetic improvements (slides, round windows, docks ...) but allows activation of compiz. Let's see now step by step how to enable this support.

Note: This article has been made possible through the collaboration of the users on the channel # ubuntu +1 for the IRC-Hispano (irc.irc-hispano.org).
identify our graphics

    For the exact model of our graphics will use the command:
  • lspci Open the application
System - Administration - Software Sources and in the tab

Another
add software repositories Edgers Xorg, which are: deb http://ppa.launchpad.net/xorg-edgers/ubuntu lucid main deb-src
http://ppa.launchpad.net/xorg-edgers/ubuntu main lucid

closed the application and reload the repositories to update the database. Now install the necessary software with the command: sudo aptitude
update & & sudo aptitude dist-upgrade & & sudo aptitude install firmware nouveau-
After loading the gui see that 3D hardware support is active with the command:
glxinfo 0.4 GL_NV_blend_square on NV84, GL_NV_conditional_render, GL_NV_light_max_exponent,

If you do not have 3D acceleration will see something like this: direct rendering: Yes OpenGL renderer string : Software Rasterizer

    Start compiz
  • If you have 3D hardware acceleration and we can move to start compiz with the command:
compiz - replace &

and check it out activating any of the compiz plugins. For example I have activated the cube:

Plugin desktop cube using compiz + nouveau
If we stop compiz active work for all sessions since the implementation System - Preferences - Appearance
in Visual Effects tab and checking
Extra or Custom

If we set the behavior of the application will use effects
System - Preferences - Options Manager CompizConfig
    :


You have many indications on the compiz settings in the series Compiz-depth articles

  • Performance Tests Although there is no standard way to analyze the performance of 3D've done a series of comparisons on the same hardware using Karmic + nvidia driver and owner of Lucid + nouveau, I leave the results in a table to judge for yourselves.



    • Test
Nouveau

Driver
owner


Glxgears

1633.05 fps


7132.80 fps

Compiz Benchmark

500 fps



600 fps




GL Tron


110 fps




950 fps



From the results we can say that desktop effects nouveau behaves more or less like the nvidia proprietary driver, but on the subject of OpenGL games is still far from matching its performance.

  • More

Nouveau
Compiz


Related Articles Installing Lucid Lynx
Alpha2
3D acceleration in Ubuntu Intrepid alpha3 nvidia Compiz-depth
Posted by admin at 3:00 PM

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