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Old 28th March 2009
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Carpetsmoker Carpetsmoker is offline
Real Name: Martin
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I checked what your configuration tweaks do, and they don't seem to be very useful:

Quote:
Originally Posted by tangram
Option "RenderAccel" "True"
According to the nVidia documentation:

Code:
Option "RenderAccel" "boolean"

    Enable or disable hardware acceleration of the RENDER extension. Default:
    hardware acceleration of the RENDER extension is enabled.

Quote:
Originally Posted by tangram
Option "NoRenderExtension" "boolean"
As I understand it, this option is not needed, and is useful mostly for disableing the RENDER extension, not for explicitly enabling it (It is always enabled if the X server supports it), from the nVidia documentation:

Code:
Option "NoRenderExtension" "boolean"
    Disable the RENDER extension. Other than recompiling it, the X server does
    not seem to have another way of disabling this. Fortunately, we can
    control this from the driver so we export this option. This is useful in
    depth 8 where RENDER would normally steal most of the default colormap.
    Default: RENDER is offered when possible.

Quote:
Originally Posted by tangram
Option "NoFlip" "False"
Again, as I understand it this option is always enabled if supported, from the nVidia documentation:

Code:
Option "NoFlip" "boolean"

    Disable OpenGL flipping; see Chapter 17 for a description. Default: OpenGL
    will swap by flipping when possible.

[...]

   o Flipping: When OpenGL flipping is enabled, OpenGL can perform buffer
     swaps by changing which buffer the DAC scans out rather than copying the
     back buffer contents to the front buffer; this is generally a much higher
     performance mechanism and allows tearless swapping during the vertical
     retrace (when __GL_SYNC_TO_VBLANK is set). The conditions under which
     OpenGL can flip are slightly complicated, but in general: on GeForce or
     newer hardware, OpenGL can flip when a single full screen unobscured
     OpenGL application is running, and __GL_SYNC_TO_VBLANK is enabled.
     Additionally, OpenGL can flip on Quadro hardware even when an OpenGL
     window is partially obscured or not full screen or __GL_SYNC_TO_VBLANK is
     not enabled.

Quote:
Originally Posted by tangram
Option "UseEdid" "True"
Enabled by default, no reason to set it, from the nVidia documentation:

Code:
Option "UseEDID" "boolean"

    By default, the NVIDIA X driver makes use of a display device's EDID, when
    available, during construction of its mode pool. The EDID is used as a
    source for possible modes, for valid frequency ranges, and for collecting
    data on the physical dimensions of the display device for computing the
    DPI (see Appendix I). However, if you wish to disable the driver's use of
    the EDID, you can set this option to False:
    
        Option "UseEDID" "FALSE"
    
    Note that, rather than globally disable all uses of the EDID, you can
    individually disable each particular use of the EDID; e.g.,
    
        Option "UseEDIDFreqs" "FALSE"
        Option "UseEDIDDpi" "FALSE"
        Option "ModeValidation" "NoEdidModes"
    
    Default: True (use EDID).

Quote:
Originally Posted by tangram
Option "NvAGP" "1"
Again, this is the default, nVidia documentation:

Code:
When built with support for the FreeBSD AGP driver, 'nvidia.ko' will fall back
to using NvAGP when it doesn't detect 'agp.ko' (this will be the case when
'agp.ko' does not support your AGP chipset or was explicitly disabled with
device hints).
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