Provided by: xserver-xorg-driver-cyrix_1.0.0.5-0ubuntu1_i386 bug

NAME

       cyrix - Cyrix video driver

SYNOPSIS

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

DESCRIPTION

       cyrix  is  an  Xorg  driver  for  the Cyrix MediaGX (now Natsemi Geode)
       series of processors when using the built in video.

SUPPORTED HARDWARE

       The  cyrix  driver  supports  the  MediaGX,   MediaGXi   and   MediaGXm
       processors,  as  well  as  the  Natsemi  ’Geode’ branded processors. It
       supports the CS5510, CS5520, CS5530 and CS5530A  companion  chips.  The
       driver  supports  4,  8,  15  and  16  bit  deep  displays  with  video
       compression and acceleration.

       The MediaGX run length compresses its shared framebuffer, for the  best
       performance  on  a  MediaGX machine pick backgrounds that compress well
       horizonally.

CONFIGURATION DETAILS

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

       The following driver options are supported

       Option "NoAccel" "boolean"
              Disable   or   enable  acceleration.  Default:  acceleration  is
              enabled.

       Option "SWCursor" "boolean"
              Disable or enable software cursor. Default  software  cursor  is
              enabled and a hardware cursor is used.

       Option "HWCursor" "boolean"
              Disable  or  enable  hardware cursor. Default hardware cursor is
              disabled.

       Option "ShadowFB" "boolean"
              Disable or enable shadow frame  buffer.  The  shadow  buffer  is
              normally  only  used  when  rotating  the screen. The default is
              false.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"

       Rotate the display clockwise or counterclockwise for use on Cyrix based
       tablet PC systems. This mode is currently unaccelerated.

BUGS

       This  driver has not been tested on the original 5510 hardware for some
       considerable time.

       8bit mode does not currently work on the CS5510 with external RAMDAC.

       The 5530A video overlay facility is not currently supported.

       Xorg uses the MediaGX ’SoftVGA’ interface. On a small number of  boards
       this is buggy and may result in strange illegal instruction traps.

       Hardware cursors are not currently supported.

SEE ALSO

       Xorg(1x), xorg.conf(5x), xorgconfig(1x), Xserver(1x), X(7)

AUTHORS

       Authors include: Richard Hecker, Annius Groenink, Dirk Hohndel, The GGI
       Project, Alan Cox.