nsc(4) - Linux man page

Name

nsc - Nsc video driver

Synopsis

Section Device  Identifier devname  Driver nsc  ...
EndSection

Description

nsc is an Xorg driver for National Semiconductors GEODE processor family. It uses the DURANGO kit provided by National Semiconductor. The driver is accelerated, and provides support for the following framebuffer 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(5x) 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 offscreen 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-offset, ww: Viewable width, hh: Viewable height. Default: no TV.

See Also

Xorg(1x), xorg.conf(5x), xorgconfig(1x), Xserver(1x), x(7)

Author

Author: Sarma V. Kolluru

Referenced By

xorg(1)