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RedHat 9 (Linux i386) - man page for rendition (redhat section 4x)

RENDITION(4x)									    RENDITION(4x)

NAME
       rendition - Rendition video driver

SYNOPSIS
       Section "Device"
	 Identifier "devname"
	 Driver "rendition"
	 ...
       EndSection

DESCRIPTION
       rendition  is  an  XFree86 driver for Rendition/Micron based video cards.  The driver sup-
       ports 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.

SUPPORTED HARDWARE
       The  rendition  driver  supports  PCI  and  AGP	video cards based on the following Rendi-
       tion/Micron chips:

       V1000	   Verite V1000 based cards.

       V2100	   Verite V2100 based cards. Diamond Stealth II S220 is the only known such card.

       V2200	   Verite V2200 based cards.

CONFIGURATION DETAILS
       Please refer to XF86Config(5x) for general configuration details.  This section only  cov-
       ers configuration details specific to this driver.

       The  driver  auto-detects the chipset type, but the following ChipSet names may optionally
       be specified in the config file "Device" section, and will override the auto-detection:

	   "v1000", "v2100", "v2200".

       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 VideoRam entry in the config file "Device" section.

       The following driver Options are supported:

       Option "SWCursor" "boolean"
	      Disables use of the hardware cursor. Default: use HW-cursor.

       Option "OverclockMem" "boolean"
	      Increases the Mem/Sys clock to 125MHz/60MHz from standard  110MHz/50MHz.	 Default:
	      Not overclocked.

       Option "DacSpeed" "MHz"
	      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.

       Option "FramebufferWC" "boolean"
	      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.

       Option "NoDDC" "boolean"
	      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.

       Option "ShadowFB" "boolean"
	      If  this option is enabled, the driver will cause the CPU to do each drawing opera-
	      tion 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/mod-
	      ify/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.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"
	      Rotate the display clockwise or  counterclockwise.   This  mode  is  unaccelerated.
	      Default: no rotation.

       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 Option "MTRR" to let the driver
	      request write-combining of memory access on the video board.

SEE ALSO
       XFree86(1), XF86Config(5x), xf86config(1), Xserver(1), X(7x)

AUTHORS
       Authors include: Marc Langenbach, Dejan Ilic

XFree86 			      Version Version 4.3.0			    RENDITION(4x)


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