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Date:      Mon, 1 Apr 1996 20:32:09 -0800 (PST)
From:      Doug White <dwhite@riley-net170-164.uoregon.edu>
To:        Earl Bryner <ebryner@ns.phbtsus.com>
Cc:        questions@freebsd.org
Subject:   Re: ATI Mach64 Help.
Message-ID:  <Pine.BSF.3.91.960401202241.417B-100000@riley-net170-164.uoregon.edu>
In-Reply-To: <199604012147.NAA04619@freefall.freebsd.org>

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On Mon, 1 Apr 1996, Earl Bryner wrote:

> I am still having one small problem though.  I have dissabled the probing of 
> com3 and com4 from my kernel, and the adapter goes nuts, and then blanks the 
> screen.  The only thing that works is to completely dissable all serial probes.
> 
> I downloaded the 3.1.2D beta Xfree86 code, and it works just great ( I have a 
> newer card with the "CT" chip set ).  However, because I can't probe any of 
> my serial ports, I can't get the mouse configured.  I have read all the FAQ 
> notes, and still haven't been successfull.

This is a well known bug, so don't feel bad :-)

You must have missed question 7.10:

-- from FAQ at http://www.freebsd.org --

7.10. The workaround works fine, but now I want to use my serial
ports.

You'll have to build a new kernel with the following modification: in
/usr/src/sys/i386/isa/sio.c find the one occurrence of the string 0x2e8 and
remove that string and the preceding comma (keep the trailing comma). Now 
follow the normal
procedure of building a new kernel.

-- end --

More detail:

in 2.1-RELEASE, it is line 342 (or somewhere near there :).  It should 
read as follows:

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

Recompile, resintall, reboot, enjoy.

> I have tried removing the 3c509, replacing the serial ports with true 8550 Uarts,
> and replacing the ATI adapter.

I sure hope you put 16550s back in...

Remember that 3.1.2B has expired; you'll have to use 3.1.2D, which is 
working just great here.  

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




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