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X11R7.4 - man page for nv (x11r4 section 4x)

NV(4x)											   NV(4x)

NAME
       nv - NVIDIA video driver

SYNOPSIS
       Section "Device"
	 Identifier "devname"
	 Driver "nv"
	 ...
       EndSection

DESCRIPTION
       nv is an Xorg driver for NVIDIA video cards.  The driver supports 2D acceleration and pro-
       vides support for the following framebuffer depths: 8, 15, 16  (except  Riva128)  and  24.
       All  visual  types  are	supported for depth 8, TrueColor and DirectColor visuals are sup-
       ported for the other depths with the exception of the Riva128 which  only  supports  True-
       Color in the higher depths.

SUPPORTED HARDWARE
       The  nv driver supports PCI, PCI-Express and AGP video cards based on the following NVIDIA
       chips:

       RIVA 128 	     NV3

       RIVA TNT 	     NV4

       RIVA TNT2	     NV5

       GeForce 256, Quadro   NV10

       GeForce2, Quadro2     NV11 & NV15

       GeForce3, Quadro DCC  NV20

       nForce, nForce2	     NV1A, NV1F

       GeForce4, Quadro4     NV17, NV18, NV25, NV28

       GeForce FX, Quadro FX NV30, NV31, NV34, NV35, NV36, NV37, NV38

       GeForce 6XXX	     NV40, NV41, NV43, NV44, NV45, C51

       GeForce 7XXX	     G70, G71, G72, G73

       GeForce 8XXX, GeForce 9XXX
			     G80, G84, G86, G92, G94, G96, G98

       GeForce GTX	     GT200

CONFIGURATION DETAILS
       Please refer to xorg.conf(5) for general configuration details.	This section only  covers
       configuration details specific to this driver.

       The  driver  auto-detects  the chipset type and the amount of video memory present for all
       chips.

       The following driver Options are supported for pre-G80 hardware:

       Option "HWCursor" "boolean"
	      Enable or disable the HW cursor.	Default: on.

       Option "NoAccel" "boolean"
	      Disable or enable acceleration.  Default: acceleration is enabled.

       Option "UseFBDev" "boolean"
	      Enable or disable use of an OS-specific fb interface (and is not supported  on  all
	      OSs).  See fbdevhw(4x) for further information.  Default: off.

       Option "CrtcNumber" "integer"
	      Many  graphics cards with NVIDIA chips have two video outputs.  The driver attempts
	      to autodetect which one the monitor is connected to.  In the case  that  autodetec-
	      tion  picks  the	wrong one, this option may be used to force usage of a particular
	      output.  The options are "0" or "1".  Default: autodetected.

       Option "Dualhead" "boolean"
	      Enables simple VBE-based dual head mode.	This sets the  same  resolution  on  both
	      outputs and lays them out side-by-side.  The screens will be panned together as one
	      big metamode if the virtual desktop is larger than both screens combined.

       Option "FlatPanel" "boolean"
	      The driver usually can autodetect the presence of a digital  flat  panel.   In  the
	      case  that  this	fails,	this  option can be used to force the driver to treat the
	      attached device as a digital flat panel.	With this driver, a  digital  flat  panel
	      will work only if it was POSTed by the BIOS, that is, the computer must have booted
	      to the panel.  If you have a dual head card you may also need  to  set  the  option
	      CrtcNumber described above.  Default: autodetected.

       Option "FPDither" "boolean"
	      Many digital flat panels (particularly ones on laptops) have only 6 bits per compo-
	      nent color resolution.  This option tells the driver to dither from 8 bits per com-
	      ponent to 6 before the flat panel truncates it.  Default: off.

       Option "FPScale" "boolean"
	      Supported  only  on  GeForce4  and  newer chips, this option tells to the driver to
	      scale lower resolutions up to the flat panel's native resolution.  Default: on.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"
	      Rotate the display clockwise or  counterclockwise.   This  mode  is  unaccelerated.
	      Default: no rotation.

	      Note: The Resize and Rotate extension will be disabled if the Rotate "CW" or Rotate
	      "CCW" options are used.

       Option "Rotate" "RandR"
	      Enable rotation of the screen using the Resize and Rotate extension.  This mode  is
	      unaccelerated.  Default: no rotation support.

       Option "ShadowFB" "boolean"
	      Enable or disable use of the shadow framebuffer layer.  Default: off.

       The following driver Options are available for G80 and higher:

       Option "HWCursor" "boolean"
	      Enable or disable the hardware cursor.  Default: on.

       Option "NoAccel" "boolean"
	      Disable or enable acceleration.  Default: acceleration is enabled.

       Option "AccelMethod" "string"
	      Choose acceleration architecture, either "XAA" or "EXA".	XAA is the old but stable
	      architecture.  EXA is newer and  supports  resizing  the	desktop  larger  than  it
	      started out with RandR 1.2.  If you choose to use EXA, you might also consider set-
	      ting Option "MigrationHeuristic" "greedy" to improve performance.  Default: XAA.

       Option "FPDither" "boolean"
	      Enable or disable flat panel dithering by default.  Dithering can also  be  enabled
	      or disabled using the RandR 1.2 "dither" output property.  Default: off.

       Option "AllowDualLinkModes" "boolean"
	      Allow  validation of dual-link DVI modes.  Not all GPUs are configured at boot time
	      to be able to handle dual-link modes, so they are disabled by default.

       The following RandR 1.2 properties are available for flat panels on G80 and higher GPUs:

       dither Enable or disable flat panel dithering.  Valid values: 0 (off), 1 (on).

       scale  Control how the image is scaled to fit the flat panel.  Note that some flat  panels
	      perform  their  own scaling, overriding this option.  "off" is not valid for laptop
	      flat panels (LVDS).  Valid values: "off", "aspect", "fill", and "center".  Default:
	      "aspect".

SEE ALSO
       Xorg(1), xorg.conf(5), Xserver(1), X(7), xrandr(1)

AUTHORS
       Authors	include:  David  McKay, Jarno Paananen, Chas Inman, Dave Schmenk, Mark Vojkovich,
       Aaron Plattner

COPYRIGHT
       Copyright (c) 2003 - 2008 NVIDIA, Corporation

       Permission is hereby granted, free of charge, to any person obtaining a copy of this soft-
       ware  and associated documentation files (the "Software"), to deal in the Software without
       restriction, including without limitation the rights to use, copy, modify, merge, publish,
       distribute,  sublicense, and/or sell copies of the Software, and to permit persons to whom
       the Software is furnished to do so, subject to the following conditions:

       The above copyright notice and this permission notice shall be included in all  copies  or
       substantial portions of the Software.

       THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT	WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
       INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR  A  PARTICULAR
       PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
       FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR  OTH-
       ERWISE,	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEAL-
       INGS IN THE SOFTWARE.

X Version 11			       xf86-video-nv 2.1.13				   NV(4x)


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