NAME    [Toc]    [Back]

     cgfourteen - accelerated 8/24-bit color frame buffer

SYNOPSIS    [Toc]    [Back]

     cgfourteen0 at obio0 addr 0x9c000000 (SS10SX and SS20)
     cgfourteen1 at obio0 addr 0x90000000 (SS10SX and SS20)
     wsdisplay* at cgfourteen?

DESCRIPTION    [Toc]    [Back]

     The cgfourteen is the  on-board  color  frame  buffer,  with
graphics acceleration
  and  overlay  capabilities, found on the SPARCstation
10SX and SPARCstation
 20 workstations.  The frame buffer will not  be  enabled unless a
     VSIMM memory module is installed.

     The  second  frame  buffer  will  also require an `Auxiliary
Video Board' to
     be installed.

     The cgfourteen 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.

DISPLAY RESOLUTION    [Toc]    [Back]

     If  the  cgfourteen 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 cgfourteen 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  cgfourteen  frame  buffer accepts the following resolutions:

   Supported Video Modes    [Toc]    [Back]
     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.
     screen:r1280x1024x66   High res 1280x1024,  with  a  refresh
rate of 66Hz.

   Unsupported Video Modes    [Toc]    [Back]
     The following video modes are supported by the hardware, but
not by Sun.

     screen:r1024x768x60    Super VGA 1024x768,  with  a  refresh
rate of 60Hz.
     screen:r1024x768x66     Super  VGA  1024x768, with a refresh
rate of 60Hz.
     screen:r1024x768x70    Super VGA 1024x768,  with  a  refresh
rate of 70Hz.
     screen:r1024x800x84     1024x800, with refresh rate of 84Hz.
     screen:r1280x1024x76m  High res 1280x1024,  with  a  refresh
rate of 76Hz.
                            There  is  no typo, the `m' suffix is
required.
     screen:r1600x1280x66   High res 1600x1280,  with  a  refresh
rate of 66Hz.
     screen:r1920x1080x72    1920x1080,  with  a  refresh rate of
72Hz.

     Resolutions of 1280x1024, 1600x1280 and 1920x1080 are  8-bit
only with 4MB
     VSIMM.

SEE ALSO    [Toc]    [Back]

     agten(4),  bwtwo(4),  cgeight(4), cgfour(4), cgsix(4), cgthree(4),
     cgtwelve(4),   cgtwo(4),   intro(4),   mgx(4),    pninek(4),
pnozz(4), rfx(4),
     tcx(4), tvtwo(4), vigra(4), wscons(4), wsdisplay(4), zx(4)

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

OpenBSD     3.6                           April      6,      2003