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3-4 3Dlabs OXYGEN VX1 PCI Graphics Controller Installation Guide
3.3.3 How to Determine which GUI is in Use
1. Check the environment variable XLOGIN defined in the file /etc/rc.config.
Example (showing the CDE GUI being used):
# /usr/sbin/rcmgr get XLOGIN
cde
#
1. If the variable is defined to be "cde," then the default GUI is CDE. If the
variable is defined to be "xdm," then the default GUI is XDM/Motif.
How to Change the Resolution and Refresh Rate on XDM GUI
1. Log in to the system as "root".
2. Make a backup copy of the file /usr/lib/X11/xdm/Xservers .
Example:
# cp /usr/lib/X11/xdm/Xservers /usr/lib/X11/xdm/Xservers.original
3. Edit the file /usr/lib/X11/xdm/Xservers and add the appropriate X
server Option, "-screen0" and or "-vsync0" to the line that starts the X
server. This line is generally the last line in the file Xservers.
Example line from the Xservers file used with XDM/Motif.
:0 local /usr/bin/X11/X
Or
:0 local /usr/bin/X11/X -nice -2
X server Options:
-screen[screen] WxH
Set screen (W)width and (H)height.
-vsync[screen] Hz
Set screen (Hz) Vertical refresh rate