NAME    [Toc]    [Back]

     cgsix - accelerated 8-bit color frame buffer

SYNOPSIS    [Toc]    [Back]

     cgsix* at sbus? slot ? offset ? flags 0x0
     wsdisplay* at cgsix?

DESCRIPTION    [Toc]    [Back]

     The cgsix is an SBus color frame buffer with graphics acceleration, commonly
  found  in  the non `creator' SBus UltraSPARC workstations.

     The cgsix driver interfaces the frame buffer  with  the  wscons(4) console
     framework.   It  does not provide direct device driver entry
points but
     makes its functions available via the internal  wsdisplay(4)
interface.

     Different  models exist, with various memory sizes and capabilities.  The
     cgsix driver supports the four flavours:
           GX
           GX+
           Turbo GX (or TGX)
           Turbo GX+ (or TGX+)

     By default hardware acceleration is used to erase the screen
and scroll
     text.   By  setting  flags  to 1 (via config(8) or boot_config(8)) this acceleration
 can be disabled.

DISPLAY RESOLUTION    [Toc]    [Back]

     If the cgsix frame buffer is used as the console display,  a
different
     resolution  than  the  default  1152x900  can be selected by
changing the
     OpenPROM environment.  To  change  the  default  resolution,
type the following:


       ok setenv output-device screen:r1280x1024x76

     to change to a 76Hz 1280x1024 resolution.

     If the cgsix frame buffer is a secondary display, or a serial console is
     used, the display resolution can not be changed without  using an nvramrc
     OpenPROM  script.  Refer to the Sun Frame Buffer FAQ for details.

     The cgsix frame buffer accepts the following resolutions:

     screen:r1024x768x60   Super VGA  1024x768,  with  a  refresh
rate of 60Hz.
                           Only available on TGX and TGX+.
     screen:r1024x768x70    Super  VGA  1024x768,  with a refresh
rate of 70Hz.
                           Only available on TGX and TGX+.
     screen:r1024x768x76   Super VGA  1024x768,  with  a  refresh
rate of 76Hz.
                           Only available on TGX and TGX+.
     screen:r1024x800x74   1024x800, with a refresh rate of 74Hz.
Only available
 on TGX and TGX+.
     screen:r1024x800x85   1024x800, with a refresh rate of 85Hz.
Only available
 on GX+, TGX and TGX+.
     screen:r1152x900x66   Standard 1152x900, with a refresh rate
of 66Hz.
     screen:r1152x900x76   Standard 1152x900, with a refresh rate
of 76Hz.
                           This  is the default setting on GX and
TGX.
     screen:r1280x1024x67  High res  1280x1024,  with  a  refresh
rate of 67Hz.
                           Only  available on GX+ and TGX+.  This
is the default
 on GX+.
     screen:r1280x1024x76  High res  1280x1024,  with  a  refresh
rate of 76Hz.
                           Only  available on TGX+, where this is
the default
                           setting.
     screen:r1600x1280x76  High res  1600x1280,  with  a  refresh
rate of 76Hz.
                           Only available on GX+ and TGX+.

     The  1600x1280 resolution is not officially supported by Sun
on the GX+.

SEE ALSO    [Toc]    [Back]

     agten(4),  bwtwo(4),   cgthree(4),   creator(4),   intro(4),
mgx(4), rfx(4),
     sbus(4), vgafb(4), wscons(4), wsdisplay(4), zx(4), boot_config(8),
     config(8)

     Sun  Frame  Buffer  FAQ,   http://www.sunhelp.org/faq/Frame-
Buffer.html.

OpenBSD      3.6                          January     5,     2003