Configuring Graphics Resolution Or Vertical Refresh Rate; Current Graphics Resolution; How To Change The Resolution And Refresh Rate - ATI Technologies 100-432001 - RADEON 7500 Multi-monitor Graphics Card Installation Manual

3.3 Configuring Graphics Resolution or Vertical
Refresh Rate for Tru64 UNIX
Systems use a file named "/usr/var/X11/Xserver.conf" to optionally pass startup
configuration parameters to the X server.
3.3.1

Current Graphics Resolution

The default graphics resolution and refresh rate are 1024x768 at 70Hz, respectively. The
graphics resolution of a running system can be obtained by executing the command
/usr/sbin/sizer -gr. The refresh rate may be obtained from the Xserver's file /var/dt/Xerrors.
3.3.2

How to Change the Resolution and Refresh Rate

1. Log in to the system as "root".
2. Edit the file /usr/var/X11/Xserver.conf and add the appropriate X server
option "-screen" and/or "-vsync" to the Xserver's configuration parameters. (Refer to
the example in Section 3.2.3.)
X server options:
Set screen (W)width and (H)height:
-screen[screen] WxH
Set screen (Hz) Vertical refresh rate:
-vsync[screen] Hz
NOTE: See Table 3–1 for supported resolutions and refresh rates.
When changing the resolution and refresh rate, be sure the parameters specified in
Xserver.conf constitute a valid video mode.
3-4 ATI RADEON 7500 AGP and PCI Graphics Controllers