Sun Microsystems XVR-1200, Installation And User Manual

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50 Sun XVR-1200 Graphics Accelerator Installation and User’s Guide • July 2004
Configuring Graphics Accelerators for
Framelocking
The device name for the Sun XVR-1200 graphics accelerator is
jfb
.
1. Designate a Sun XVR-1200 graphics accelerator as the master.
You may use the Sun XVR-1200 graphics accelerator that serves as the boot/console
head for that system.
You may select any device (that is,
jfb0
,
jfb1
, ... and so on) to be the master Sun
XVR-1200 graphics accelerator device.
2. Make sure that each Sun XVR-1200 graphics accelerator installed is running a
video format with an identical frame refresh rate to the video format running on
the Sun XVR-1200 graphics accelerator in master mode.
a. Check the resolution of a Sun XVR-1200 graphics accelerator by using the
fbconfig
command.
For example:
You must repeat this command for each Sun XVR-1200 graphics accelerator in the
system or systems.
b. Change the resolution of a Sun XVR-1200 graphics accelerator using the
fbconfig
command.
If the resolution on each Sun XVR-1200 graphics accelerator is not the same, you
must change it to match the Sun XVR-1200 graphics accelerator in master mode.
You must configure each board separately (that is, for
jfb0
,
jfb1
, and so on).
For example:
Log out of the X window system, and then log back in for the resolutions to take
effect.
3. Connect the framelock cables to each Sun graphics accelerator to be framelocked.
host% fbconfig -dev jfb0 -prconf
host% fbconfig -dev jfb0 -res 1280x1024x76
host% fbconfig -dev jfb1 -res 1280x1024x76