Tech Source Raptor 4000 (for Solaris) - Manual (Page 22)

Raptor 4000/4000e Drivers (Solaris)
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When dtlogin is started, a login screen will appear on the Raptor
display. The user may log on to this display using the console
keyboard and mouse.
4.3 Setting Bit-Depth on 4000/4000e
Cards
Raptor 4000/4000e cards support 8-bit, 24-bit, 8+24 bit, 8+8,
mox24 and mox32 modes. By default X Windows comes up in 24-
bit mode on these cards. Changes to the desired bit-depth can be
made by using the atcconfig utility (see Section 3.5).
4.4 MOX Modes
The following MOX modes apply to the Raptor 4000/4000e cards:
Mox16 MOX, 8-bit Normal, 13-bit Group, 5-bit Absolute
mox24 MOX, 8-bit Normal, 21-bit Group, 13-bit Absolute
mox32 MOX, 8-bit Normal, 32-bit Group, 24-bit Absolute
NOTE: Details of the MOX extension to X Server are in a
separate technical white paper. This may be obtained from Tech
Source.