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+.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/savage/savage.man,v 1.6 2002/05/14 20:19:51 alanh Exp $ 
+.\" shorthand for double quote that works everywhere.
+.ds q \N'34'
+.TH SAVAGE __drivermansuffix__ __vendorversion__
+.SH NAME
+savage \- S3 Savage video driver
+.SH SYNOPSIS
+.nf
+.B "Section \*qDevice\*q"
+.BI "  Identifier \*q"  devname \*q
+.B  "  Driver \*qsavage\*q"
+\ \ ...
+.B EndSection
+.fi
+.SH DESCRIPTION
+.B savage 
+is an XFree86 driver for the S3 Savage family video accelerator chips.  The
+.B savage
+driver supports PCI and AGP boards with the following chips:
+.TP 16
+.BI Savage3D
+(8a20 and 8a21) 
+.TP 16
+.B Savage4
+(8a22) 
+.TP 16
+.B Savage2000
+(9102) 
+.TP 16
+.B Savage/MX
+(8c10 and 8c11) 
+.TP 16
+.B Savage/IX
+(8c12 and 8c13) 
+.TP 16
+.B ProSavage PM133
+(8a25)
+.TP 16
+.B ProSavage KM133
+(8a26)
+.TP 16
+.B Twister (ProSavage PN133)
+(8d01)
+.TP 16
+.B TwisterK (ProSavage KN133)
+(8d02)
+.TP 16
+.B ProSavage DDR
+(8d03)
+.TP 16
+.B ProSavage DDR-K
+(8d04)
+.SH CONFIGURATION DETAILS
+Please refer to XF86Config(__filemansuffix__) for general configuration
+details.  This section only covers configuration details specific to this
+driver.
+.PP
+The following driver
+.B Options
+are supported:
+.TP
+.BI "Option \*qHWCursor\*q \*q" boolean \*q
+.TP
+.BI "Option \*qSWCursor\*q \*q" boolean \*q
+These two options interact to specify hardware or software cursor.  If the
+SWCursor option is specified, any HWCursor setting is ignored.  Thus, either
+\*qHWCursor off\*q or \*qSWCursor on\*q will force the use of the software 
+cursor.  On Savage/MX and Savage/IX chips which are connected to LCDs, a
+software cursor will be forced, because the Savage hardware cursor does not 
+correctly track the automatic panel expansion feature.
+Default: hardware cursor.
+.TP
+.BI "Option \*qNoAccel\*q \*q" boolean \*q
+Disable or enable acceleration.  Default: acceleration is enabled.
+.TP
+.BI "Option \*qRotate\*q \*qCW\*q"
+.TP
+.BI "Option \*qRotate\*q \*qCCW\*q"
+Rotate the desktop 90 degrees clockwise or counterclockwise.  This option 
+forces the ShadowFB option on, and disables acceleration.
+Default: no rotation.
+.TP
+.BI "Option \*qShadowFB\*q \*q" boolean \*q
+Enable or disable use of the shadow framebuffer layer.  See
+shadowfb(__drivermansuffix__) for further information.  This option
+disables acceleration.  Default: off.
+.TP
+.BI "Option \*qLCDClock\*q \*q" frequency \*q
+Override the maximum dot clock.  Some LCD panels produce incorrect results if
+they are driven at too fast of a frequency.  If UseBIOS is on, the BIOS will
+usually restrict the clock to the correct range.  If not, it might be 
+necessary to override it here.  The
+.B frequency
+parameter may be specified as an integer in Hz (135750000), or with
+standard suffixes like "k", "kHz", "M", or "MHz" (as in 135.75MHz).
+.TP
+.BI "Option \*qUseBIOS\*q \*q" boolean \*q
+Enable or disable use of the video BIOS to change modes.  Ordinarily, the 
+.B savage 
+driver tries to use the video BIOS to do mode switches.  This generally 
+produces the best results with the mobile chips (/MX and /IX), since the BIOS
+knows how to handle the critical but unusual timing requirements of the 
+various LCD panels supported by the chip.  To do this, the driver searches
+through the BIOS mode list, looking for the mode which most closely matches
+the XF86Config mode line.  Some purists find this scheme objectionable.  If 
+you would rather have the
+.B savage
+driver use your mode line timing exactly, turn off the UseBios option.  
+Default: on (use the BIOS).
+.TP
+.BI "Option \*qShadowStatus\*q \q*" boolean \*q
+Enables the use of a shadow status register.  There is a chip bug in the 
+Savage graphics engine that can cause a bus lock when reading the engine
+status register under heavy load, such as when scrolling text or dragging
+windows.  The bug affects about 4% of all Savage users.  If your system
+hangs regularly while scrolling text or dragging windows, try turning this
+option on.  This uses an alternate method of reading the engine status
+which is slightly more expensive, but avoids the problem.  Default: off
+(use normal status register).
+.SH FILES
+savage_drv.o
+.SH "SEE ALSO"
+XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1), X(__miscmansuffix__)
+.SH AUTHORS
+Authors include Tim Roberts (timr@probo.com) and Ani Joshi (ajoshi@unixbox.com)
+for the 4.0 version, and Tim Roberts and S. Marineau for the 3.3 driver from 
+which this was derived.