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     ffbconfig,  SUNWffb_config  -  configure  the  FFB  Graphics

     /usr/sbin/ffbconfig [-dev device-filename] [ -res video-mode
      [now | try]
      [noconfirm | nocheck] ] [-file  |  machine  |  system]   [-
     deflinear  | true | false]  [-defoverlay | true | false]  [-
     linearorder | first | last]  [-overlayorder | first |  last]
     [-expvis  | enable | disable]  [-sov | enable | disable]  [-
     maxwids n]  [-extovl  |  enable   |   disable]    [-g gamma-
     correction-value]   [-gfile gamma-correction-file]  [-propt]
     [-prconf] [-defaults]

     /usr/sbin/ffbconfig [-propt ] [-prconf]

     /usr/sbin/ffbconfig [-help] [ -res ?]

     ffbconfig configures the FFB Graphics Accelerator  and  some
     of the X11 window system defaults for FFB.

     The first form of ffbconfig stores the specified options  in
     the  OWconfig file. These options will be used to initialize
     the FFB device the next time the window  system  is  run  on
     that  device. Updating options in the OWconfig file provides
     persistence of these options across window  system  sessions
     and system reboots.

     The second and third forms of ffbconfig, which  invoke  only
     the -prconf, -propt, -help, and -res ? options do not update
     the OWconfig file. Additionally,  for  the  third  form  all
     other options are ignored.

     Options may be specified for only one FFB device at a  time.
     Specifying  options for multiple FFB devices requires multi-
     ple invocations of ffbconfig.

     Only FFB-specific options can be specified  through  ffbcon-
     fig. The normal window system options for specifying default
     depth, default visual class and so forth are still specified
     as  device  modifiers  on  the openwin command line. See the
     OpenWindows Desktop Reference Manual for details.

     The user can also specify the OWconfig file that  is  to  be
     updated.  By  default,  the  machine-specific  file  in  the
     /etc/openwin directory tree is updated. The -file option can
     be  used  to  specify an alternate file to use. For example,
     the system-global OWconfig file in the  /usr/openwin  direc-
     tory tree can be updated instead.

     Both of these standard OWconfig files can only be written by
     root. Consequently, the ffbconfig program, which is owned by
     the root user, always runs with setuid root permission.

     -dev device-filename

         Specifies  the  FFB  special  file.   The   default   is

     -file machine|system

         Specifies which OWconfig file to update. If  machine  is
         specified,  the  machine-specific  OWconfig  file in the
         /etc/openwin directory tree is  updated.  If  system  is
         specified,  the global OWconfig file in the /usr/openwin
         directory tree is updated. If the  specified  file  does
         not  exist,  it  is  created.  This option has no effect
         unless other  options  are  specified.  The  default  is

     -res video-mode [now | try [noconfirm | nocheck]]

         Specifies the video mode used to drive the monitor  con-
         nected to the specified FFB device.

         video-mode has the  format  of  widthxheightxrate  where
         width  is  the  screen  width  in  pixels, height is the
         screen height in pixels, and rate is the  vertical  fre-
         quency of the screen refresh.

         The s suffix, as in 960x680x112s and 960x680x108s, indi-
         cates   stereo   video   modes.  The  i  suffix,  as  in
         640x480x60i and 768x575x50i, indicates interlaced  video
         timing. If absent, non-interlaced timing will be used.

         -res (the third form in the SYNOPSIS) also accepts  for-
         mats  with  @  (at  sign)  in  front of the refresh rate
         instead of x. 1280x1024@76 is an example of this format.

         Some video-modes are supported only on certain revisions
         of  FFB.  Also,  some video-modes, supported by FFB, may
         not be supported by the monitor. The list of video-modes
         supported  by  the  FFB  device  and  the monitor can be
         obtained by running ffbconfig with the -res ? option.

         The following table lists all possible video modes  sup-
         ported on FFB:
         Name                          Description
         960x680x112s                  (stereo)
         960x680x108s                  (stereo)
         640x480x60i                   (interlaced)
         768x575x50i                   (interlaced)
         1440x900x76                   (hi-res)
         1600x1000x66                  (hi-res)
         1600x1000x76i                 (hi-res)
         1600x1280x76                  (hi-res)
         1920x1080x72                  (hi-res)
         1920x1200x70                  (hi-res)

         Symbolic names

         For convenience, some video modes  have  symbolic  names
         defined  for  them.   Instead of the form widthxheightx-
         rate, one of these names may be supplied as the argument
         to  -res.  The meaning of the symbolic name none is that
         when the window system is run the screen resolution will
         be  the  video  mode that is currently programmed in the

       |  Name                          Corresponding Video Mode   |
       |  svga                          1024x768x60                |
       |  1152                          1152x900x76                |
       |  1280                          1280x1024x76               |
       |  stereo                        960x680x112s               |
       |  ntsc                          640x480x60i                |
       |   pal                          768x575x50i                |
       |  none                          (video mode currently  pro-|
       |                                grammed in device)         |

         The -res option also accepts additional, optional  argu-
         ments  immediately  following  the video mode specifica-
         tion. Any or all of these may be present.


         Specifies that the FFB device will be  immediately  pro-
         grammed  to  display  this  video  mode,  in addition to
         updating the video  mode  in  the  OWconfig  file.  This
         option  is  useful  for  changing  the video mode before
         starting the window system.

         It is inadvisable to use this suboption  with  ffbconfig
         while  the configured device is being used (for example,
         while running the window system); unpredictable  results
         may  occur.  To  run  ffbconfig  with the now suboption,
         first bring the window system down. If the now suboption
         is  used  within a window system session, the video mode
         will be changed immediately, but the width and height of
         the affected screen won't change until the window system
         is exited and re-entered. In addition,  the  system  may
         not recognize changes in stereo mode. Consequently, this
         usage is strongly discouraged.


         Instructs ffbconfig to bypass confirmation and and warn-
         ing  messages  and  to  program the requested video mode

         Using the -res option, the user  could  potentially  put
         the  system  into an unusable state, a state where there
         is no video output.  This can happen if there  is  ambi-
         guity in the monitor sense codes for the particular code
         read. To reduce the chance of this, the default behavior
         of  ffbconfig  is  to  print  a  warning message to this
         effect and to prompt the user to find out if it is  okay
         to  continue.  This  option  is useful when ffbconfig is
         being run from a shell script.


         Suspends normal error  checking  based  on  the  monitor
         sense code. The video mode specified by the user will be
         accepted regardless of whether it is appropriate for the
         currently  attached  monitor. This option is useful if a
         different monitor is to be connected to the FFB  device.
         Note: Use of this option implies noconfirm as well.


         Programs the specified video mode on a trial basis.  The
         user will be asked to confirm the video mode by typing y
         within 10 seconds. The user may also terminate the trial
         before  10  seconds are up by typing any character.  Any
         character other than y or RETURN is considered a no  and
         the  previous  video mode will be restored and ffbconfig
         will not change the video mode in the OWconfig file  and
         other  options  specified  will still take effect.  If a
         RETURN is pressed, the user is prompted for a yes or  no
         answer on whether to keep the new video mode.

         This sub-option should not be used with ffbconfig  while
         the  configured device is being used (for example, while
         running the window system) as unpredictable results  may
         occur. To run fbconfig with the try sub-option, the win-
         dow system should be brought down first.

     -deflinear true | false

         FFB possesses two types of  visuals:   linear  and  non-
         linear. Linear visuals are gamma corrected and nonlinear
         visuals are not. There are two visuals  that  have  both
         linear  and nonlinear versions:  24-bit TrueColor and 8-
         bit StaticGray.

         -deflinear true sets the default visual  to  the  linear
         visual  that  satisfies  other  specified default visual
         selection  options.  Specifically,  the  default  visual
         selection options are those set by the Xsun (1) defdepth
         and defclass options. See OpenWindows Desktop  Reference
         Manual for details.
         -deflinear false (or if there is no linear  visual  that
         satisfies  the  other  default visual selection options)
         sets the default visual to the non-linear visual as  the

         This option cannot be used when the  -defoverlay  option
         is  present, because FFB does not possess a linear over-
         lay visual.

     -defoverlay true | false

         FFB provides an 8-bit PseudoColor  visual  whose  pixels
         are  disjoint  from the rest of the FFB visuals. This is
         called the overlay  visual.   Windows  created  in  this
         visual will not damage windows created in other visuals.
         The converse, however, is not true. Windows  created  in
         other  visuals  will damage overlay windows. This visual
         has 256 maxwids of opaque color values. See -maxwids  in

         If -defoverlay is true, the overlay visual will be  made
         the  default  visual. If -defoverlay is false, the nono-
         verlay visual that satisfies the  other  default  visual
         selection  options, such as defdepth and  defclass, will
         be chosen as the default visual.  See  the   OpenWindows
         Desktop Reference Manual for details.

         Whenever -defoverlay true is used, the default depth and
         class  chosen  on the openwin command line must be 8-bit
         PseudoColor. If not, a warning message will  be  printed
         and  the  -defoverlay  option  will be treated as false.
         This option cannot be used when the -deflinear option is
         present,  because  FFB  doesn't possess a linear overlay

     -linearorder first | last

         If first, linear visuals will  come  before  their  non-
         linear  counterparts  on  the X11 screen visual list for
         the FFB screen. If last, the nonlinear visuals will come
         before the linear ones.

     -overlayorder first | last

         If true, the depth 8  PseudoColor  Overlay  visual  will
         come  before  the  non-overlay  visual on the X11 screen
         visual list for the  FFB  screen.  If  false,  the  non-
         overlay visual will come before the overlay one.

     -expvis enable | disable

         If enabled, OpenGL Visual Expansion will  be  activated.
         Multiple  instances  of  selected  visual  groups (8-bit
         PseudoColor, 24-bit TrueColor and so forth) can be found
         in the screen visual list.

     -sov enable | disable

         Advertises the root window's SERVER_OVERLAY_VISUALS pro-
         perty.  SOV  visuals  will  be  exported and their tran-
         sparent  types,  values  and  layers  can  be  retrieved
         through this property. If -sov disable is specified, the
         SERVER_OVERLAY_VISUALS property will not be defined. SOV
         visuals will not be exported.

     -maxwids n

         Specifies the maximum number  of  FFB  X  channel  pixel
         values  that are reserved for use as window sIDs (WIDs).
         The remainder of the pixel values in  overlay  colormaps
         are  used  for  normal  X11  opaque  color  pixels.  The
         reserved WIDs are allocated on a first-come  first-serve
         basis by 3D graphics windows (such as XGL), MBX windows,
         and windows that have a non-default visual. The X  chan-
         nel  codes 0 to (255-n) will be opaque color pixels. The
         X channel codes (255-n+1) to 255 will  be  reserved  for
         use as  WIDs. Legal values on FFB, FFB2 are: 1, 2, 4, 8,
         16, and 32. Legal values on FFB2+ are: 1, 2, 4,  8,  16,
         32, and 64.

     -extovl enable | disable

         This option is available  only  on  FFB2+.  If  enabled,
         extended  overlay is available. The overlay visuals will
         have 256 opaque colors. The SOV visuals  will  have  255
         opaque  colors  and  1  transparent  color.  This option
         enables hardware supported transparency  which  provides
         better performance for windows using the SOV visuals.

     -g gamma-correction value

         This option is available only  on  FFB2+.   This  option
         allows  changing  the gamma correction value. All linear
         visuals provide gamma correction. By default  the  gamma
         correction  value  is  2.22. Any value less than zero is
         illegal. The gamma correction value is  applied  to  the
         linear  visual,  which then has an effective gamma value
         of 1.0, which is  the  value  returned  by  XSolarisGet-
         VisualGamma(3).   See  XSolarisGetVisualGamma(3)  for  a
         description of that function.

         This option can be used while the window system is  run-
         ning.  Changing  the  gamma correction value will affect
         all the windows being displayed using the  linear  visu-

     -gfile gamma-correction file

         This option is available only  on  FFB2+.   This  option
         loads  gamma  correction  table from the specified file.
         This file should  be  formatted  to  provide  the  gamma
         correction  values for R, G and B channels on each line.
         This file should provide 256  triplet  values,  each  in
         hexadecimal  format  and  separated by at least 1 space.
         Following is an example of this file:

         0x00 0x00 0x00
         0x01 0x01 0x01
         0x02 0x02 0x02
         0xff 0xff 0xff

         Using this option, the gamma  correction  table  can  be
         loaded while the window system is running. The new gamma
         correction will affect all the windows  being  displayed
         using the linear visuals. Note, when gamma correction is
         being done using user specified table, the gamma correc-
         tion  value is undefined.  By default, the window system
         assumes a gamma correction value of 2.22 and  loads  the
         gamma table it creates corresponding to this value.


         Resets all option values to their default values.


         Prints the current values of  all  FFB  options  in  the
         OWconfig file specified by the -file option for the dev-
         ice specified by the -dev option. Prints the  values  of
         options  as  they will be in the OWconfig file after the
         call to ffbconfig completes. The following is a  typical
         display using the -propt option:

         --- OpenWindows Configuration for /dev/fbs/ffb0 ---
         OWconfig: machine
         Video Mode: NONE
         Default Visual: Non-Linear Normal Visual
         Visual Ordering: Linear Visuals are last
                          Overlay Visuals are last
         OpenGL Visuals: disabled
         SOV: disabled
         Allocated WIDs: 32


         Prints the FFB hardware configuration. The following  is
         a typical display using the -prconf option:

         --- Hardware Configuration for /dev/fbs/ffb0 ---
         Type: double-buffered FFB2 with Z-buffer
         Board: rev x
         PROM Information: @(#)ffb2.fth x.x xx/xx/xx
         FBC: version x
         DAC: Brooktree 9068, version x
         3DRAM: Mitsubishi 1309, version x
         EDID Data: Available - EDID version 1 revision x
         Monitor Sense ID: 4  (Sun 37x29cm RGB color monitor)
         Monitor possible resolutions: 1024x768x60, 1024x768x70,
                                       1024x768x75, 1152x900x66, 1152x900x76,
                                       1280x1024x67, 1280x1024x76,
                                       960x680x112s, 640x480x60
         Current resolution setting: 1280x1024x76


         Prints a list of the  ffbconfig  command  line  options,
         along with a brief explanation of each.

     For a given invocation  of  ffbconfig  command  line  if  an
     option  does not appear on the command line, the correspond-
     ing OWconfig option is not updated; it retains its  previous

     When the window system is run, if an FFB  option  has  never
     been  specified  via ffbconfig, a default value is used. The
     option defaults are listed in the following table:

    | Option                        Default                     |
    | -dev                          /dev/fbs/ffb0               |
    | -file                         machine                     |
    | -res                          none                        |
    | -deflinear                    false                       |
    | -defoverlay                   false                       |
    |  -linearorder                 last                        |
    | -overlayorder                 last                        |
    | -expvis                       enabled                     |
    | -sov                          enabled                     |
    | -maxwids                      32                          |

     The default for the -res option of none means that when  the
     window system is run the screen resolution will be the video
     mode that is currently programmed in the device.

     This provides compatibility for users who are used to speci-
     fying  the  device resolution through the PROM. On some dev-
     ices (for example, GX) this is the only  way  of  specifying
     the  video  mode. This means that the PROM ultimately deter-
     mines the default FFB video mode.

     Example 1: Changing The Monitor Type

     The following example switches the monitor type to the reso-
     lution of 1280  1024 at 76 Hz:

     example% /usr/sbin/ffbconfig -res 1280x1024x76


     /dev/fbs/ffb0   device special file

     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWffbcf                   |

     mmap(2), attributes(5), fbio(7I), ffb(7D)

     OpenWindows Desktop Reference Manual

Man pages from Solaris 10 Update 8. See docs.sun.com and www.oracle.com for further documentation and Solaris information.