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Sun Fire V880z Server and Sun XVR-4000 Graphics Accelerator Installation and User’s Guide • May 2003
If both devices are configured to use maximum sample density (the default), the first
stream will use many more samples than the second stream. These may be made
equal by limiting the first stream (or both) using the
fbconfig -samples
option.
Multicard Setup
To use three (or four) video streams (monitors), you need to use two graphics
boards. You may link those boards with Xinerama.
With three streams, one would be doublewide (or doublehigh) and one would be
“normal.” For four streams, both would be doublewide. For example, here are the
steps to create the following monitor setup:
zulu0
left (13W3A) to monitor 1
zulu0
right (13W3B) to monitor 2
zulu1
left (13W3A) to monitor 3
zulu1
right (13W3B) to monitor 4
1. Configure each Sun XVR-4000 graphics accelerator as follows:
2. Put both devices in the
Xservers
file.
As superuser, type:
3. Modify the
Xservers
file.
Enter the
Xservers
file content in one long line. You may link the two graphics
boards together with Xinerama by adding the
+xinerama
option, as shown.
In this example, you need to include
top
to indicate that
zulu1
is above
zulu0
, as
shown in
on the left. Without
top
included, the X Window system
arranges the monitors linearly, left to right, as shown below on the right:
host% fbconfig -dev zulu0 -doublewide enable
host% fbconfig -dev zulu1 -doublewide enable
# cd /etc/dt/config
# vi + Xservers
:0
Local local_uid@console root /usr/openwin/bin/Xsun +xinerama
-dev /dev/fbs/zulu0 -dev /dev/fbs/zulu1 top
