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Date:      Sat, 20 Nov 1999 22:28:29 -0600
From:      "Chris Dahler" <chris.dahler@gte.net>
To:        <freebsd-questions@freebsd.org>
Subject:   Serial Ports Problem
Message-ID:  <001801bf33d8$de624d40$46941a3f@laptop>

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I'm posting this again since only a part of this question made it through
last time.  I have a Compaq Presario laptop, a PII 266MHz, 64M RAM, running
Win98/3.3-Release.  It has an internal winmodem attached to COM2 and a
pccard faxmodem attached to COM3. During boot, FreeBSD always reports sio0
as found, but it reports all other sio's as "not found", and the IRQ's for
these ports as "not in the bitmap...", however, Windows reports the IRQs for
these other ports as not being in conflict with anything and are the
"normal" IRQs for these ports.  About half of the time, FreeBSD goes on to
reporting on the hard drive and the cdrom and so forth, and then, when the
boot process is practically finished, the line "sio2 16550A" appears,
usually just before (or sometimes even after) the login prompt appears.  The
other half of the time, FreeBSD doesn't find any other sio's at all.

This problem is completely baffling to me.  Why would FreeBSD report
initially that sio2 is not found, and then change its mind later on in the
boot?  Why would it be able to detect this port at all only sometimes? My
computer seems like it should be a fairly plain-vanilla construction rather
than some weird off-the-wall mix of odd peripherals that was put together in
someone's garage... has anyone encountered this problem before?

Chris Dahler




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