VIA(4) UNIX Programmer's Manual VIA(4)
via - VIA video driver
Section "Device"
Identifier "devname"
Driver "via"
...
EndSection
via is an XFree86 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
XFree86 4.2 builds. If you are interested in porting the DRI
support to current XFree86 then please see the DRI project
on sourceforge.net.
Please refer to XF86Config(5) 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 rotat-
ing 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.
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VIA(4) UNIX Programmer's Manual VIA(4)
Option "Rotate" "string"
Rotate the display either clockwise ("CW") or counter
clockwise ("CCW"). Rotation is only supported unac-
celerated.
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" out-
puts. 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 sys-
tem. The driver currently supports the VT1621 and
VT1622 encoders.
Option "Refresh" "integer"
Specify the desired refresh.
Option "DisableVQ" "boolean"
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VIA(4) UNIX Programmer's Manual VIA(4)
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.
XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)
Authors include: ...
XFree86 Version 4.5.0 3
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