R128(4) 						     Kernel Interfaces Manual							   R128(4)

NAME

       r128 - ATI Rage 128 video driver

SYNOPSIS

       Section "Device"
	 Identifier "devname"
	 Driver "r128"
	 ...
       EndSection

DESCRIPTION

       r128  is  an  XFree86  driver for ATI Rage 128 based video cards.  It contains full support for 8, 15, 16 and 24 bit pixel depths, hardware
       acceleration 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 robust text mode restoration for VT switching.

SUPPORTED HARDWARE

       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
       8MB.

CONFIGURATION DETAILS

       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 specify:

	   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. Supported 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.  Beware 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 system may hang.

       Option "UseFBDev" "boolean"
	      Enable or disable use of an OS-specific framebuffer device interface (which is not supported on all OSs).  See fbdevhw(4)  for  fur-
	      ther 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.

SEE ALSO

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

AUTHORS

       Rickard E. (Rik) Faith	faith@precisioninsight.com
       Kevin E. Martin		kevin@precisioninsight.com

XFree86 							   Version 4.7.0							   R128(4)