[Nouveau] Bad performace for NV18 driver

Carlos Garces carlos.garces at gmail.com
Fri Jun 7 14:56:46 PDT 2013


I have some strange results on my test with nouveau drivers

I'm using a old GeForce4 MX 4000 (NV18) with 128 MB.

I have made 2 test.

-The default configuration, using nomodeset without nouveau_vieux_dri.so

$inxi -G
Graphics:  Card: NVIDIA NV18 [GeForce4 MX 4000]
           X.Org: 1.12.4 drivers: vesa,nouveau (unloaded: fbdev)
Resolution: 1024x768 at 0.0hz
           GLX Renderer: N/A GLX Version: N/A

-The "optimized" configuration, after removing nomodeset, installing
the 3d driver (nouveau_vieux_dri.so, package libgl1-mesa-dri) and
configure the xorg to use only nouveau

$inxi -G
Graphics:  Card: NVIDIA NV18 [GeForce4 MX 4000] X.Org: 1.12.4 driver:
nouveau Resolution: 800x600 at 85.1hz
           GLX Renderer: Mesa DRI nv18 x86/MMX+/3DNow!+/SSE GLX
Version: 1.2 Mesa 8.0.5

The resolution is 800x600 because was impossible for me set up  1024x768

There is the full xorg log

The results are strange for me. I expect better performance on
"optimized" configuration but some test using Cairo are very bad (0,54
vs  5,38).

The test are available at

Any idea to improve the performace of NV18?
Any know issue with nouveau_vieux_dri.so and NV18?

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