Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!ames!scubed!eric
From: eric@scubed.UUCP (Eric Kennedy)
Newsgroups: comp.unix.xenix
Subject: Device Driver Needed - Compaq Portable 386, Dual Mode Plasma Display
Message-ID: <927@scubed.UUCP>
Date: 21 Feb 89 00:30:25 GMT
Reply-To: eric@scubed.UUCP (Eric Kennedy)
Organization: S-Cubed, San Diego California
Lines: 24


	We have recently purchased a Compaq Portable 386/20 computer
and installed SCO Xenix 2.3.  The computer has a dual mode display
which is capable of looking like either a monochrome display or a CGA
display.  In addition to the normal monochrome and CGA display modes
the display also supports a 640x400 graphics mode which is not a
standard CGA mode.  After some poking around I found the MODESWITCH
ioctl and hoped that setting the mode to 64 or 74 would do the trick.
It did not, I assume that the device driver includes code which only
allows certain modes to be activated.  I would guess that if we had
access to the source code for the CGA driver or a similar driver that
the changes necessary for access to this additional functionality
would be easily implemented.  Before we write a driver from scratch I
wanted to see if anyone has already written this device driver (or a
similar one).  If you have I would greatly appreciate hearing from
you.  Thanks!

					Sincerely,

					eric@scubed.arpa
					Eric Kennedy
					S-CUBED
					3398 Carmel Mountain Road
					San Diego, CA 92121
					(619) 453-0060