185 lines
6.7 KiB
Groff
185 lines
6.7 KiB
Groff
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.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga.man,v 1.7 2003/04/03 07:11:03 herrb Exp $
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.\" shorthand for double quote that works everywhere.
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.ds q \N'34'
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.TH mga __drivermansuffix__ __vendorversion__
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.SH NAME
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mga \- Matrox video driver
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.SH SYNOPSIS
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.nf
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.B "Section \*qDevice\*q"
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.BI " Identifier \*q" devname \*q
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.B " Driver \*qmga\*q"
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\ \ ...
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.B EndSection
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.fi
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.SH DESCRIPTION
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.B mga
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is an __xservername__ driver for Matrox video cards. The driver is fully
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accelerated, and provides support for the following framebuffer depths: 8,
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15, 16, 24, and an 8+24 overlay mode. All visual types are supported for
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depth 8, and both TrueColor and DirectColor visuals are supported for the
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other depths except 8+24 mode which supports PseudoColor, GrayScale and
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TrueColor. Multi\-card configurations are supported. XVideo is supported
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on G200 and newer systems, with either
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.B TexturedVideo
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or video overlay. The second head of dual\-head cards is supported for the
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G450 and G550. Support for the second head on G400 cards requires a
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binary\-only "mga_hal" module that is available from Matrox
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<http://www.matrox.com>, and may be on the CD supplied with the card. That
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module also provides various other enhancements, and may be necessary to
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use the DVI (digital) output on the G550 (and other cards).
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.SH "SUPPORTED HARDWARE"
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The
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.B mga
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driver supports PCI and AGP video cards based on the following Matrox
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chips. They are listed in approximate chronological order of production
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(with the most recent chipsets listed last), so consult this list when you
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are unsure whether your card is meant when references are made to \(oqG200
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and later\(cq chips, for example.
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.TP
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.B MGA2064W
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.TP
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.B MGA1064SG
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Mystique
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.TP
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.B MGA2164W
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Millennium II
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.TP
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.B G100
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Productiva G100
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.TP
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.B G200
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Millennium G200 and Mystique G200
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.TP
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.B G400
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Millennium G400, Millennium G400 MAX, Millennium G450, and Marvel G450 eTV
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.TP
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.B G550
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Millennium G550 and Millennium G550 Dual DVI
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.SH "CONFIGURATION DETAILS"
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Please refer to __xconfigfile__(__filemansuffix__) for general configuration
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details. This section only covers configuration details specific to this
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driver.
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.PP
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The driver auto\-detects the chipset type, but the following
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.B ChipSet
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names may optionally be specified in the config file
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.B \*qDevice\*q
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section, and will override the auto\-detection:
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.PP
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.RS 4
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"mga2064w", "mga1064sg", "mga2164w", "mga2164w agp", "mgag100", "mgag200",
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"mgag200 pci", "mgag400", "mgag550".
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.RE
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.PP
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The G450 is Chipset "mgag400" with ChipRev 0x80.
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.PP
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The driver will auto\-detect the amount of video memory present for all
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chips except the Millennium II. In the Millennium II case it defaults
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to 4096\ kBytes. When using a Millennium II, the actual amount of video
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memory should be specified with a
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.B VideoRam
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entry in the config file
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.B \*qDevice\*q
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section.
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.PP
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The following driver
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.B Options
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are supported:
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.TP
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.BI "Option \*qColorKey\*q \*q" integer \*q
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Set the colormap index used for the transparency key for the depth 8 plane
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when operating in 8+24 overlay mode. The value must be in the range
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2\-255. Default: 255.
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.TP
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.BI "Option \*qHWCursor\*q \*q" boolean \*q
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Enable or disable the HW cursor. Default: on.
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.TP
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.BI "Option \*qMGASDRAM\*q \*q" boolean \*q
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Specify whether G100, G200 or G400 cards have SDRAM. The driver attempts to
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auto\-detect this based on the card's PCI subsystem ID. This option may
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be used to override that auto\-detection. The
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.B mga
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driver is not able to auto\-detect the presence of of SDRAM on secondary
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heads in multihead configurations so this option will often need to be
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specified in multihead configurations. Default: auto\-detected.
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.TP
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.BI "Option \*qNoAccel\*q \*q" boolean \*q
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Disable or enable acceleration. Default: acceleration is enabled.
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.TP
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.BI "Option \*qAccelMethod\*q \*q" "string" \*q
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Chooses between available acceleration architectures. Valid options are
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.B XAA
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and
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.B EXA.
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XAA is the traditional acceleration architecture and support for it is very
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stable. EXA is a newer acceleration architecture with better performance for
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the Render and Composite extensions, but the rendering code for it is newer and
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possibly unstable. The default is
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.B XAA.
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.TP
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.BI "Option \*qNoHal\*q \*q" boolean \*q
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Disable or enable loading the "mga_hal" module. Default: the module is
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loaded when available and when using hardware that it supports.
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.TP
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.BI "Option \*qOverclockMem\*q"
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Set clocks to values used by some commercial X Servers (G100, G200 and G400
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only). Default: off.
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.TP
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.BI "Option \*qOverlay\*q \*q" value \*q
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Enable 8+24 overlay mode. Only appropriate for depth 24.
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Recognized values are: "8,24", "24,8". Default: off.
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.RB ( Note:
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the G100 is unaccelerated in the 8+24 overlay mode due to a missing
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hardware feature.)
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.TP
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.BI "Option \*qPciRetry\*q \*q" boolean \*q
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Enable or disable PCI retries. Default: off.
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.TP
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.BI "Option \*qRotate\*q \*qCW\*q"
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.TP
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.BI "Option \*qRotate\*q \*qCCW\*q"
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Rotate the display clockwise or counterclockwise. This mode is unaccelerated.
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Default: no rotation.
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.TP
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.BI "Option \*qShadowFB\*q \*q" boolean \*q
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Enable or disable use of the shadow framebuffer layer. Default: off.
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.TP
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.BI "Option \*qSyncOnGreen\*q \*q" boolean \*q
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Enable or disable combining the sync signals with the green signal.
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Default: off.
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.TP
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.BI "Option \*qUseFBDev\*q \*q" boolean \*q
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Enable or disable use of on OS\-specific fb interface (and is not supported
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on all OSs). See fbdevhw(__drivermansuffix__) for further information.
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Default: off.
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.TP
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.BI "Option \*qVideoKey\*q \*q" integer \*q
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This sets the default pixel value for the YUV video overlay key.
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Default: undefined.
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.TP
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.BI "Option \*qTexturedVideo\*q \*q" boolean \*q
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This has XvImage support use the texture engine rather than the video
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overlay. This option is only supported by G200 and later chips, and only
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at 16 and 32 bits per pixel.
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Default: off.
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.TP
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.BI "Option \*qOldDmaInit\*q \*q" boolean \*q
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This forces the driver to use the old DMA initialization path for DRI.
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Use this option only to support a older version of the DRI driver with
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a newer DRM (version 3.2 or later). This option also disables the use
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of direct rendering on PCI cards.
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Default: off.
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.TP
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.BI "Option \*qForcePciDma\*q \*q" boolean \*q
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This forces the use of PCI DMA even if AGP DMA could be used. This
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option is primarily intended for testing purposes, but it could also
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be used on systems with a buggy or poorly function AGP implementation.
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Default: off.
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.SH "SEE ALSO"
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__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), xorgconfig(__appmansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)
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.SH AUTHORS
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Authors include: Radoslaw Kapitan, Mark Vojkovich, and also David Dawes, Guy
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Desbief, Dirk Hohndel, Doug Merritt, Andrew E. Mileski, Andrew van der Stock,
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Leonard N. Zubkoff, Andrew C. Aitchison.
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