Table of Contents
via - VIA video driver
Section "Device"
Identifier "devname"
Driver "via"
...
EndSection
via is an Xorg driver for VIA video chipsets.
The via driver
supports the VIA CLE266 (CLE3122, CLE3022) chipset video and the VIA KM400/K8M800
VT3204/5/7204/5 video, including 2D acceleration and the Xv video overlay
extensions. Flat panel, TV and VGA outputs are supported.
Direct rendering
3D is available for this device only using Xorg 4.2 builds. If you are interested
in porting the DRI support to current Xorg then please see the DRI project
on sourceforge.net.
Please refer to xorg.conf(5x)
for
general configuration details. This section only covers configuration details
specific to this driver.
The following driver options are supported
- Option
"NoAccel" "boolean"
- Disable or enable acceleration. Default: acceleration
is enabled.
- Option "HWCursor" "boolean"
- Disable or enable use of hardware
cursors. The default is enabled.
- Option "SWCursor" "boolean"
- Disable or enable
the use of a software cursor. The default is disabled.
- Option "ShadowFB"
"boolean"
- Use a shadow frame buffer. This is required when rotating the
display, but otherwise defaults to disabled.
- Option "UseBIOS" "boolean"
- Use the video BIOS to set modes. Default false.
- Option "VideoRAM" "boolean"
- Override the VideoRAM auto detection. This should never be needed.
- Option
"Rotate" "string"
- Rotate the display either clockwise ("CW") or counter
clockwise ("CCW"). Rotation is only supported unaccelerated.
- Option "ActiveDevice"
"string"
- Specify the active device combination. The choices are "CRT,TV",
"CRT,LCD", "CRT,DFP", "TV,DFP", "CRT", "LCD", or "DFP", for the various
supported combinations of VGA CRT output, LCD panel output, DFP output
and TV output.
- Option "LCDDualEdge" "boolean"
- Use dual edge mode to set
the LCD.
- Option "Center" "boolean"
- Disable or enable image centering on
DVI displays.
- Option "PanelSize" "string"
- Specify the size (width x height)
of the LCD panel attached to the system. Sizes 640x480, 800x600, 1024x768,
1280x1024, and 1400x1050 are supported.
- Option "TVDotCrawl" "boolean"
- Disable
or enable dotcrawl.
- Option "TVType" "string"
- Specify TV output format. The
driver currently supports NTSC and PAL timings only.
- Option "TVOutput" "string"
- Specify which TV output to use. The driver supports "S-Video", "Composite",
"SC", "RGB" and "YCbCr" outputs. Note that on many boards the composite
video port is shared with audio out and jumper selected.
- Option "TVVScan"
"string"
- Specify whether to underscan the TV image (bordering it with black),
or overscan it (losing the edges of the picture).
- Option "TVHScale" "string"
- Not yet implemented.
- Option "TVEncoder" "string"
- Specify which TV encoder
chip is attached to the system. The driver currently supports the VT1621
and VT1622 encoders.
- Option "Refresh" "integer"
- Specify the desired refresh.
- Option "DisableVQ" "boolean"
- Disable or enable the use of VQ. VQ is enabled
by default.
- Option "Cap0Deinterlace" "string"
- Set the capture 0 port interlace
mode to either Bob or Weave.
- Option "Cap1Deinterlace" "string"
- Set the capture
1 port interlace mode to either Bob or Weave.
- Option "Cap0FieldSwap" "string"
- Perform field swapping on capture port 0.
- Option "DRIXINERAMA" "boolean"
- Set DRI Xinerama mode. Currently unsupported.
- Option "NoDDCValue" "boolean"
- Disable the use of DDC to set the horizontal sync and vertical refresh.
Xorg(1x)
, xorg.conf(5x)
, xorgconfig(1x)
, Xserver(1x)
, X(7)
Authors
include: ...
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