If you have purchased and installed a graphics card in your SPARC M8-8 server, perform the following procedure to enable the X server to provide display services to the monitor. By default, the SPARC M8-8 server is configured to use Xvnc as the X server. This procedure shows how to override the Xvnc server and enable the Xorg server which must be used to display to a monitor.
# svccfg -s application/x11/x11-server setprop options/vncplatform_override = boolean: true
# svcadm restart gdm
# svcprop -p options/vncplatform_override svc:/application/x11/x11-server