*BSD News Article 54109


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From: gandalf@
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Problems with Mach64 Accelerator
Date: 1 Nov 1995 17:01:50 GMT
Organization: Software Design Consultants, Inc.
Lines: 27
Message-ID: <47895u$c1n@vixen.cso.uiuc.edu>
References: <1995Nov1.162427.21676@zippy.dct.ac.uk>
Reply-To: sdc_bcg@dave-world.net
NNTP-Posting-Host: cat3.ncsa.uiuc.edu
X-Newsreader: IBM NewsReader/2 v1.2

In <1995Nov1.162427.21676@zippy.dct.ac.uk>, sh@dstn26.dct.ac.uk (Sinclair Hay) writes:
>Has anyone else been having problems with the ATI Mach 64 
>Graphics Accelerator card.  When I boot up and the serial ports
>are probed my screen goes blank and the machine continues to boot
>and operate as normal (except for the totally blank screen).
>
>If I swap the Mach 64 for an old VGA card everything works OK.
>

Sinclair -

Do you, by chance, have a serial port set as COM4?  The ATI Mach (8/32/64) cards
emulate an old IBM 8514 style video adapter which has some of its I/O ports at the
same location as the standard for COM4 on IBM compatible PCs. (Don't remember
the port location off the top of my head).

To use the ATI card, you would have to disable or move the COM4 serial port.
No other work-around exists.

Then again, this may not be your problem.

==================================================================
Bob Greenwald
President, Software Design Consultants, Inc.  Bloomington, IL  USA
(309) 825-6780  FAX:  (309) 664-1721
sdc_bcg@dave-world.net