From owner-freebsd-questions Wed Apr 24 17:12:17 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id RAA14531 for questions-outgoing; Wed, 24 Apr 1996 17:12:17 -0700 (PDT) Received: from gallup.cia-g.com (root@gallup.cia-g.com [206.206.162.10]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id RAA14498 Wed, 24 Apr 1996 17:12:11 -0700 (PDT) Received: from gallup.cia-g.com (gallup.cia-g.com [206.206.162.10]) by gallup.cia-g.com (8.6.11/8.6.9) with SMTP id SAA13273; Wed, 24 Apr 1996 18:15:10 -0600 Date: Wed, 24 Apr 1996 18:15:09 -0600 (MDT) From: Stephen Fisher To: Dongil Shin cc: freebsd-questions@FreeBSD.org, freebsd-hardware@FreeBSD.org Subject: Re: Boot floppy problem with Intel Atlantis motherboard (Mach64) In-Reply-To: <9604241357.AA18885@ponder> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk It looks like a conflit with COM4 and the ATI Mach64. The way FreeBSD probes for serial ports it causes the ATI (which has a bug, not freebsd) to respond as COM4. It locks up your screen (blank) and puts the monitor into power saving mode (if supported). To fix this quickly disable all of your com ports (at the boot: prompt type -c then at the prompt type "visual"). I believe the fix is in /usr/src/sys/i386/sio.c but I can't find where I patched it anywhere. On Wed, 24 Apr 1996, Dongil Shin wrote: > > I am having problem with boot floppy (for installation). > The booting process goes ok until it uncompresses the kernel. Then, > suddenly the monitor garbles and goes black. My configuration is > > 1) Intel Atlantis Motherboard with ATI Mach64 chip (2M DRAM) > 2) AMI BIOS 1.000.05.CL > 3) CTX 1765 GMe monitor > > Anybody had similar booting problem? Any suggestions or > helps are greatly appreciated. > > p.s. Win95 and DOS are ok. > > -- > ----------------------------------------------------------------------------- > PO BOX 13886 (Dongil Shin) INTERNET: dshin@cs.unt.edu > Dept. of Comp. Sci. WWW : http://poseidon.csci.unt.edu/shin.html > Univ. of North Texas VOICE : 817-565-2088 (Office) FAX: 817-565-2799 > Denton, TX 76203-3886 OFFICE : GAB 542A >