From owner-freebsd-current@FreeBSD.ORG  Wed Apr  8 08:38:14 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 02143106566C;
	Wed,  8 Apr 2009 08:38:14 +0000 (UTC) (envelope-from mav@FreeBSD.org)
Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121])
	by mx1.freebsd.org (Postfix) with ESMTP id 3A97B8FC0A;
	Wed,  8 Apr 2009 08:38:13 +0000 (UTC) (envelope-from mav@FreeBSD.org)
X-Spam-Flag: SKIP
X-Spam-Yversion: Spamooborona-2.1.0
Received: from orphanage.alkar.net (account mav@alkar.net [212.86.226.11]
	verified) by cmail.optima.ua (CommuniGate Pro SMTP 5.2.9)
	with ESMTPA id 239663393; Wed, 08 Apr 2009 11:38:12 +0300
Message-ID: <49DC6273.1040907@FreeBSD.org>
Date: Wed, 08 Apr 2009 11:38:11 +0300
From: Alexander Motin <mav@FreeBSD.org>
User-Agent: Thunderbird 2.0.0.14 (X11/20080612)
MIME-Version: 1.0
To: Robert Noland <rnoland@FreeBSD.org>
References: <1239063789.00097214.1239052203@10.7.7.3>	
	<1239063790.00097218.1239052203@10.7.7.3>	
	<1239063792.00097228.1239052802@10.7.7.3>
	<49DBBE59.2080801@mavhome.dp.ua>
	<1239142508.1947.26.camel@balrog.2hip.net>
In-Reply-To: <1239142508.1947.26.camel@balrog.2hip.net>
X-Enigmail-Version: 0.95.0
Content-Type: text/plain; charset=KOI8-R
Content-Transfer-Encoding: 7bit
Cc: Diego Depaoli <trebestie@gmail.com>,
	freebsd-current <freebsd-current@freebsd.org>
Subject: Re: AMD 780G chipset major issues 2/3 (snd_hda)
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Apr 2009 08:38:14 -0000

Robert Noland wrote:
> On Tue, 2009-04-07 at 23:58 +0300, Alexander Motin wrote:
>> Diego Depaoli wrote:
>>> On Mon, Apr 6, 2009 at 11:06 PM, Paul B. Mahol <onemda@gmail.com> wrote:
>>>> Because pcm0 switched position with pcm1 :-)
>>> Already noticed.
>>> Do you know why?
>> It is really interesting question, but probably to the PCI guys.
> 
> I think it is due to bus enumeration... the first one found (i.e. lower
> bus id) becomes pcm0.  If I plug in the radeon HD 3850 which has hdmi
> audio, it ends up being pcm0, instead of my rear ports.  I also have a
> seperate codec for front ports, which is a bit of a pain, but...

I understand this, I am surprised that attach orders on boot and later
are different:

on boot:
hdac0: <ATI RS780 High Definition Audio Controller> mem
0xfeae8000-0xfeaebfff irq 19 at device 5.1 on pci1
hdac1: <ATI SB600 High Definition Audio Controller> mem
0xfe8f4000-0xfe8f7fff irq 16 at device 20.2 on pci0

later:
hdac0: <ATI SB600 High Definition Audio Controller> mem
0xfe8f4000-0xfe8f7fff irq 16 at device 20.2 on pci0
hdac1: <ATI RS780 High Definition Audio Controller> mem
0xfeae8000-0xfeaebfff irq 19 at device 5.1 on pci1

Any ideas?

-- 
Alexander Motin