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Date: Mon, 4 Mar 1996 18:08:11 -0800 (PST)
From: Doug White <dwhite@riley-net170-164.uoregon.edu>
Reply-To: dwhite@resnet.uoregon.edu
To: Ryan Kereliuk <cs95283@wolfcreek.cs.ualberta.ca>
cc: questions@freebsd.org
Subject: Re: Video Screwed with Serial Support Included
In-Reply-To: <96Mar4.134551-0700_mst.75085-4+11@wolfcreek.cs.ualberta.ca>
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On Mon, 4 Mar 1996, Ryan Kereliuk wrote:

> Hi,
> 
> I'm, using FreeBSD 2.10 and things are pretty smooth with one
> exception:
> 
> When I have serial support compiled in, the kernel boots, but
> the video changes to a one-inch high bar situated horizontly
> across the middle of the display.

PROBLEM:

1.  You have a Mach64 display adapter.

2.  The Mach64 and the sio probe code do no like each other.

3.  You have not patched sio.c to not probe com4.  

REMEDY:

modify /sys/i386/isa/sio.c as follows.  

Change line 342 to:

static Port_t likely_com_ports[] = { 0x3f8, 0x2f8, 0x3e8, };

The change is the last address was deleted.  

Recompile, reboot, enjoy.

Doug White                              | University of Oregon  
Internet:  dwhite@gladstone.uoregon.edu | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major