RE: sio problem in -current (COM1)

From: Bruce Evans <bde_at_zeta.org.au>
Date: Thu, 3 Apr 2003 17:34:14 +1000 (EST)
On Wed, 2 Apr 2003, Cagle, John (ISS-Houston) wrote:

> Thanks!  It was an ACPI-related problem.  I disabled ACPI
> (hint.acpi.0.disabled="1" in /boot/device.hints) and rebooted and now
> both com ports show up properly as they did with FreeBSD 4.8.  (These
> are just standard com ports, btw.)

We still don't know why acpi sometimes gets this wrong.

> I didn't realize ACPI was involved in legacy com port detection.  That's
> weird.

It seems to be used for most legacy ports.  IIRC, it found all except 2 or
3 devices according to your boot messages, with the vga devices being an
interesting exception (most vga devices are too new to even support pci).

Bruce
Received on Wed Apr 02 2003 - 21:34:28 UTC

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