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3-2 3Dlabs OXYGEN VX1 PCI Graphics Controller Installation Guide
3.2 Restrictions and Limitations
This section of the document contains limitations and restrictions of the
OXYGEN VX1 hardware and software.
3.2.1 Minimum Console Revision
The minimum Tru64 UNIX firmware version for 3Dlabs OXYGEN VX1 PCI
graphics controller single head support is V5.8 (V5.9 for multihead
configurations – see Section 3.4).
3.2.2 Multiple Colormaps
Multiple colormaps are not supported. The 3Dlabs OXYGEN VX1 PCI graphics
controller supports only one installed colormap at one time. Exceeding this limit
will cause colormap flashing, also known as "technicolor."
Applications should not install or deinstall colormaps themselves. The window
manager should perform these actions. However, the application is responsible
for providing the window manager with hints as to which colormaps to install or
deinstall. You provide this information using the Xlib function
XSetWMColormapWindows(). This function sets the WM_COLORMAP_WINDOWS
property for a given window.
3.2.3 Default Visual Information
The 3Dlabs OXYGEN VX1 board can only support one visual type at one time.
Supported visual types are 8-bit PseudoColor, 16-bit TrueColor, and 24-bit
TrueColor. By default, the default depth and visual class is 8-bit PseudoColor.
To change the default visual, you must edit the X server's configuration file
which is located at /usr/var/X11/Xserver.conf.
As an example, to switch to 24-bit TrueColor:
! Permedia VX1 Server args start
-pn -bs -su -nice -2 -depth 24 -vclass TrueColor
! Permedia VX1 Server args end
You then need to restart the X server. When logged in remotely:
/usr/sbin/init.d/xlogin restart