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+.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/rendition/rendition.man,v 1.2 2001/01/27 18:20:51 dawes Exp $ 
+.\" shorthand for double quote that works everywhere.
+.ds q \N'34'
+.TH RENDITION __drivermansuffix__ __vendorversion__
+.SH NAME
+rendition \- Rendition video driver
+.SH SYNOPSIS
+.nf
+.B "Section \*qDevice\*q"
+.BI "  Identifier \*q"  devname \*q
+.B  "  Driver \*qrendition\*q"
+\ \ ...
+.B EndSection
+.fi
+.SH DESCRIPTION
+.B rendition 
+is an XFree86 driver for Rendition/Micron based video cards.  The driver
+supports following framebuffer depths: 8, 15 (Verite V1000 only), 16
+and 24. Acceleration and multi-head configurations are
+not supported yet, but are work in progress.
+.SH SUPPORTED HARDWARE
+The
+.B rendition
+driver supports PCI and AGP video cards based on the following Rendition/Micron chips:
+.TP 12
+.B V1000
+Verite V1000 based cards.
+.TP 12
+.B V2100
+Verite V2100 based cards. Diamond Stealth II S220 is the only known such card.
+.TP 12
+.B V2200
+Verite V2200 based cards.
+.SH CONFIGURATION DETAILS
+Please refer to XF86Config(__filemansuffix__) for general configuration
+details.  This section only covers configuration details specific to this
+driver.
+.PP
+The driver auto-detects the chipset type, but the following
+.B ChipSet
+names may optionally be specified in the config file
+.B \*qDevice\*q
+section, and will override the auto-detection:
+.PP
+.RS 4
+"v1000", "v2100", "v2200".
+.RE
+.PP
+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
+.B VideoRam
+entry in the config file
+.B \*qDevice\*q
+section.
+.PP
+The following driver
+.B Options
+are supported:
+.TP
+.BI "Option \*qSWCursor\*q \*q" boolean \*q
+Disables use of the hardware cursor. Default: use HW-cursor.
+.TP
+.BI "Option \*qOverclockMem\*q \*q" boolean \*q
+Increases the Mem/Sys clock to 125MHz/60MHz from standard 110MHz/50MHz.
+Default: Not overclocked.
+.TP
+.BI "Option \*qDacSpeed\*q \*q" MHz \*q
+Run the memory at a higher clock. Useful on some cards with display glitches
+at higher resolutions. But adds the risk to damage the hardware. Use with 
+caution.
+.TP
+.BI "Option \*qFramebufferWC\*q \*q" boolean \*q
+If writecombine is disabled in BIOS, and you add this option in configuration
+file, then the driver will try to request writecombined access to the 
+framebuffer. This can drastically increase the performance on unaccelerated
+server. Requires that "MTRR"-support is compiled into the OS-kernel.
+Default: Disabled for V1000, enabled for V2100/V2200.
+.TP
+.BI "Option \*qNoDDC\*q \*q" boolean \*q
+Disable probing of DDC-information from your monitor. This information is not
+used yet and is only there for informational purposes. This might change
+before final XFree86 4.0 release. Safe to disable if you experience problems
+during startup of X-server.
+Default: Probe DDC.
+.TP
+.BI "Option \*qShadowFB\*q \*q" boolean \*q
+If this option is enabled, the driver will cause the CPU to do each drawing
+operation first into a shadow frame buffer in system virtual memory and then
+copy the result into video memory. If this option is not active, the CPU will
+draw directly into video memory.  Enabling this option is beneficial for those
+systems where reading from video memory is, on average, slower than the
+corresponding read/modify/write operation in system virtual memory.  This is 
+normally the case for PCI or AGP adapters, and, so, this option is enabled by
+default unless acceleration is enabled.
+Default: Enabled unless acceleration is used.
+.TP
+.BI "Option \*qRotate\*q \*qCW\*q"
+.TP
+.BI "Option \*qRotate\*q \*qCCW\*q"
+Rotate the display clockwise or counterclockwise.  This mode is unaccelerated.
+Default: no rotation.
+.TP
+.SH "Notes"
+For the moment the driver defaults to not request write-combine for any chipset
+as there has been indications of problems with it. Use
+.B "Option \*qMTRR\*q"
+to let the driver request write-combining of memory access on the video board.
+.SH "SEE ALSO"
+XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1), X(__miscmansuffix__)
+.SH AUTHORS
+Authors include: Marc Langenbach, Dejan Ilic