NAME

       sisusb - SiS USB video driver

SYNOPSIS

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

DESCRIPTION

       sisusb  is  an  Xorg  driver  for  SiS  (Silicon Integrated Systems) video chips that are connected via a
       Net2280-based USB dongle. The driver is not accelerated, but provides support for colordepths  of  8,  16
       and 24 bpp as well as Render and other extensions.

SUPPORTED HARDWARE

       The sisusb driver supports USB video cards based on the following chipsets:

       SiS315E/PRO

       The  SiS315E/PRO  features  two  CRT  controllers.  However,  in  its USB version, only the first output,
       referred to as "CRT1", is being used.

CONFIGURATION DETAILS

       Please refer to xorg.conf(5) for general configuration details and to sis(4) for more  information.  This
       manpage only covers a subset of the supported options.

       Detailed      information      on      all      supported      options     can     be     obtained     at
       http://www.winischhofer.at/linuxsisusbvga.shtml

       Please note that this driver requires a Linux kernel driver as well which is included in Linux 2.6.12 and
       later, as well as available at the aforementioned website.

       The following driver Options are supported:

       Option "HWCursor" "boolean"
              Enable  or  disable  the  hardware cursor. It is not recommended to disable the hardware cursor as
              this will increase the amount of data transferred over the USB. Default: HWCursor is on.

       Option "SWCursor" "boolean"
              The opposite of HWCursor. This enables or disables the software cursor. This  sort  of  cursor  is
              slower because the pointer must be painted into the graphics display. This increases the amount of
              data transferred over the USB significantly. Default: SWCursor is off.

       Option "CRT1Gamma" "boolean"
              Enable or disable gamma correction.  Default: Gamma correction is on.

       Option "DisconnectTimeout" "integer"
              This option determines how the driver will react to a disconnection of  the  USB  device.  If  the
              integer  supplied is -1, the driver will abort the X server immediately upon disconnection. If the
              value given is 0, the driver will probe for a re-connection every 2 seconds and in case the device
              is detected, re-establish the display. If the value is greater than 0, the driver will do this re-
              probing within the given number of seconds and abort the server if it does not detect  the  device
              within this time-out. Default: 0 (probe forever for device reconnection).

KNOWN BUGS

       none.

SEE ALSO

       Xorg(1), xorg.conf(5), Xserver(1), X(7), sis(4)

       http://www.winischhofer.at/linuxsisvga.shtml for more information and updates

AUTHORS

       Author: Thomas Winischhofer