r128(7)

NAME

       r128 - ATI Rage 128 video driver

SYNOPSIS

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

DESCRIPTION

       r128 is an Xorg driver for ATI Rage 128 based video cards.  It contains
       full support for 8, 15, 16 and 24 bit pixel depths, hardware  accelera-
       tion  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 xorg.conf(4) 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. 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.
              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  sys-
              tem 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(7)
              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.

SEE ALSO

       Xorg(1), xorg.conf(4), xorgconfig(1), Xserver(1), X(5)

AUTHORS

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

X.Org                            Version 6.8.2                         R128(7)