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NSC(4)                     Kernel Interfaces Manual                     NSC(4)



NAME
       nsc - Nsc video driver

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

DESCRIPTION
       nsc  is an Xorg driver for National Semiconductors GEODE processor fam-
       ily.  It uses the DURANGO kit provided by National Semiconductor.   The
       driver  is  accelerated,  and provides support for the following frame-
       buffer depths: 8, 16 and 24.

SUPPORTED HARDWARE
       The nsc driver supports GXLV (5530 companion chip), SC1200, SC1400  and
       GX2 (5535 companion chip).

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

       The driver will auto-detect the amount of video memory present for  all
       chips.  If  the  amount  of  memory is detected incorrectly, the actual
       amount of video memory should be specified with a VideoRam entry in the
       config file "Device" section.

       The following driver Options are supported:

       Option "SWCursor" "boolean"
              Enable or disable the SW cursor.  Default: off.

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

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

       Option "NoCompression" "boolean"
              Disable or enable compression.  Default: compression is enabled.

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

       Option "Rotate" "CW"
              Rotate  the  display  clockwise. This mode is unaccelerated, and
              uses the Shadow Frame Buffer layer.  Default: no rotation.

       Option "Rotate" "CCW"
              Rotate the display counterclockwise. This mode is unaccelerated,
              and uses the Shadow Frame Buffer layer.  Default: no rotation.

       Option "FlatPanel" "boolean"
              This  enables  the FlatPanel display unit. The FlatPanel depends
              on the BIOS to do the Panel h/w initialization.   In  GX2  based
              platforms with TFT part Flatpanel is enabled, and on CRT part is
              disabled.  Default: off.

       Option "OSMImageBuffers" "integer"
              This sets the number of scanline buffers to be allocated in off-
              screen  memory  for acceleration. This can take any value 0 will
              disable the allocation. Disabled if  cannot  allocate  requested
              scanline memory.  Default: 20.

       Option "ColorKey" "integer"
              This sets the default pixel value for the YUV video overlay key.
              Default: 0.

       The following Options are supported only on SC1200 based platforms:

       Option "TV" "PAL-768x576"
              Selects the PAL TV display mode 768x576 and the depth is  forced
              to 16 bpp.  Default: no TV.

       Option "TV" "PAL-720x576"
              Selects  the PAL TV display mode 720x576 and the depth is forced
              to 16 bpp.  Default: no TV.

       Option "TV" "NTSC-720x480"
              Selects the NTSC TV display mode 720x480 and the depth is forced
              to 16 bpp.  Default: no TV.

       Option "TV" "NTSC-640x480"
              Selects the NTSC TV display mode 640x480 and the depth is forced
              to 16 bpp.  Default: no TV.

       Option "TV_Output" "COMPOSITE"
              The selected TV mode  output  is  coded  for  Composite  signal.
              Default: no TV.

       Option "TV_Output" "SVIDEO"
              The  selected  TV  mode  output  is  coded  for  SVIDEO  signal.
              Default: no TV.

       Option "TV_Output" "YUV"
              The selected TV mode output is coded for YUV  signal.   Default:
              no TV.

       Option "TV_Output" "SCART"
              The selected TV mode output is coded for SCART signal.  Default:
              no TV.

       Option "TVOverscan" x:yy:ww:hh"
              This option will let only the viewable display area  smaller  to
              be  able  to view on TV. The parameters xx: X-offset, yy: Y-off-
              set, ww: Viewable width, hh: Viewable height.  Default: no TV.

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

AUTHOR
       Author: Sarma V. Kolluru



X Version 11                 xf86-video-nsc 2.8.3                       NSC(4)