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R128(4)			   Kernel Interfaces Manual		       R128(4)

       r128 - ATI Rage 128 video driver

       Section "Device"
	 Identifier "devname"
	 Driver	"r128"

       r128  is	an XFree86 driver for ATI Rage 128 based video cards.  It con-
       tains full support for 8, 15, 16	and 24 bit pixel depths, hardware  ac-
       celeration  of  drawing	primitives, hardware cursor, video modes up to
       1800x1440 @ 70Hz, doublescan modes (e.g., 320x200 and  320x240),	 gamma
       correction  at  all pixel depths, a fully programming dot clock and ro-
       bust text mode restoration for VT switching.

       The r128	driver supports	all ATI	Rage 128 based video  cards  including
       the  Rage  Fury	AGP  32MB, the XPERT 128 AGP 16MB and the XPERT	99 AGP

       Please refer to XF86Config(5) for general configuration details.	  This
       section only covers configuration details specific to this driver.

       The  driver auto-detects	all device information necessary to initialize
       the card.  However, if you have problems	with auto-detection,  you  can

	   VideoRam - in kilobytes
	   MemBase  - physical address of the linear framebuffer
	   IOBase   - physical address of the MMIO registers
	   ChipID   - PCI DEVICE ID

       In addition, the	following driver Options are supported:

       Option "SWcursor" "boolean"
	      Selects software cursor.	The default is off.

       Option "NoAccel"	"boolean"
	      Enables  or  disables all	hardware acceleration.	The default is
	      to enable	hardware acceleration.

       Option "Dac6Bit"	"boolean"
	      Enables or disables the use of 6 bits per	color  component  when
	      in  8  bpp mode (emulates	VGA mode).  By default,	all 8 bits per
	      color component are used.	 The default is	off.

       Option "VideoKey" "integer"
	      This overrides the default pixel value for the YUV video overlay
	      key.  The	default	value is undefined.

       Option "Display"	"string"
	      Select  display mode for devices which support flat panels. Sup-
	      ported modes are:

	      "FP" - use flat panel;

	      "CRT" - use cathode ray tube;

	      "Mirror" - use both FP and CRT;

	      "BIOS" - use mode	as configured in the BIOS.

	      The default is FP.

       The following Options are mostly	important for non-x86 architectures:

       Option "ProgramFPRegs" "boolean"
	      Enable or	disable	programming of the flat	panel registers.   Be-
	      ware  that  this	may damage your	panel, so use this at your own
	      risk.  The default depends on the	device.

       Option "PanelWidth" "integer"

       Option "PanelHeight" "integer"
	      Override the flat	panel dimensions in pixels. They are  used  to
	      program  the  flat panel registers and normally determined using
	      the video	card BIOS. If the wrong	dimensions are used, the  sys-
	      tem may hang.

       Option "UseFBDev" "boolean"
	      Enable  or  disable use of an OS-specific	framebuffer device in-
	      terface (which is	not supported on all OSs).  See	fbdevhw(4) for
	      further information.  Default: off.

       Option "DMAForXv" "boolean"
	      Try  or  don't  try to use DMA for Xv image transfers. This will
	      reduce CPU usage when playing big	 videos	 like  DVDs,  but  may
	      cause instabilities.  Default: off.

       The following additional	Options	are supported:

       Option "ShowCache" "boolean"
	      Enable or	disable	viewing	offscreen cache	memory.	 A development
	      debug option.  Default: off.

       XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)

       Rickard E. (Rik)	Faith
       Kevin E.	Martin

XFree86				 Version 4.4.0			       R128(4)


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