NAME

gtconfig − initialize the GT Graphics Accelerator and download microcode

SYNOPSIS

/usr/sbin/gtconfig [ −i ] [ −v ] [ −c 1-14 ] [ −d device-filename ] [ −E bit-code ]

[ −f filename ] [ −g|G gamma-value ] [ −I microcode-directory ]

[ −m|M monitor-type ] [ −s0 filename ] [ −s1 filename ] [ −w 2-9 ]

[ −degamma8|DEGAMMA8 on|off ]

DESCRIPTION

gtconfig initializes the GT Graphics Accelerator and downloads microcode from the host.  It is normally run as a part of /etc/rc.local to download GT microcode files and to complete GT initialization. 

The standard version of the file /etc/rc.local contains the following gtconfig command line:

/usr/sbin/gtconfig

If another configuration is desired, edit the command line in /etc/rc.local. 

It is inadvisable to run the gtconfig command while the configured device is being used; unpredictable results may occur.  If it is necessary to change the gtconfig command, bring the system down gently, boot single user, edit the gtconfig line in the /etc/rc.local file, and bring the system back up multi-user. 

Filenames may be either relative or absolute pathnames.  Relative pathnames are prepended with the path specified by −I, or the default path /usr/lib. 

OPTIONS

−i Initialize the GT backend. 

−v Set verbose mode. 

−c 1-14 Set the OpenWindows server CLUT quota.  The default is 8. 

−d device-filename Specify the GT special file.  The default is /dev/gt0. 

−E bit-code Specify the cursor enable plane to contain all zeros or all ones.  The default is 0. 

−f filename Specify the Front End microcode file.  The default is gt.ucode. 

−g gamma-value Specify the gamma correction value.  The default is 2.22. 

−G gamma-value Load the gamma correction table only; do not initialize the GT or download microcode. 

−I microcode-directory Specify the directory containing microcode files.  The default is /usr/lib. 

−m monitor-type Specify the monitor type of 1280_76, 1280_67, or stereo.  The default is 1280_67. 

−M monitor-type Set the monitor type only; do not initialize the GT or download microcode. 

−s0 filename Specify the Setup Processor 0 microcode file.  The default is gt.c30.ucode. 

−s1 filename Specify the Setup Processor 1 microcode file.  The default is gt.c31.ucode. 

−w 2-9 Set the OpenWindows server WID plane quota.  The default is 5. 

−degamma8 on|off Specify automatic inverse gamma correction of 8-bit indexed color maps.  This allows colormaps with built-in gamma correction to work properly on GT.  The default is on.

−DEGAMMA8 on|off Like degamma8, but only specifies automatic inverse gamma correction; does not otherwise initialize GT or download microcode. 

FILES

/dev/gt0 GT Graphics Accelerator file

/etc/rc.local local boot script

gt.c30.ucode Setup Processor 0  microcode file

gt.c31.ucode Setup Processor 1 microcode file

gt.ucode GT Front End microcode file

/usr/lib directory that normally contains the microcode files

SEE ALSO

mmap(2), fbio(7), gt(7)

SunOS 5.2  —  Last change: 20 Jan 1993