From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1755331Ab3A1I4h (ORCPT <rfc822;w@1wt.eu>);
	Mon, 28 Jan 2013 03:56:37 -0500
Received: from cantor2.suse.de ([195.135.220.15]:47645 "EHLO mx2.suse.de"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1754702Ab3A1I4f (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Mon, 28 Jan 2013 03:56:35 -0500
Date: Mon, 28 Jan 2013 09:56:33 +0100
Message-ID: <s5h1ud5bs8u.wl%tiwai@suse.de>
From: Takashi Iwai <tiwai@suse.de>
To: Shawn Bohrer <shawn.bohrer@gmail.com>
Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: 3.7 HDMI channel map regression
In-Reply-To: <20130128011827.GA30485@lintop>
References: <20130128011827.GA30485@lintop>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka)
 FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/24.2
 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

At Sun, 27 Jan 2013 19:18:27 -0600,
Shawn Bohrer wrote:
> 
> Hi Takashi,
> 
> I recently updated my HTPC from 3.6.11 to 3.7.2 and this caused my RL
> and FC channels to swap, and my RR and LFE channels to swap for PCM
> audio.  Doing a git bisect identified
> d45e6889ee69456a4d5b1bbb32252f460cd48fa9 "ALSA: hda - Provide the
> proper channel mapping for generic HDMI driver" as the commit that
> caused my channels to swap.  The commit doesn't revert cleanly on
> 3.7.4, and I haven't really looked to see what the correct fix might
> be.
> 
> Some info that may be relevant, the sound card is a:
> 
> 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset
> Family High Definition Audio Controller (rev 04)
> 
> The machine is running Fedora 18 and audio goes over HDMI to a 5.1
> receiver.  I'm not really sure what other info you might need, but
> let me know if you need something else or have any patches you would
> like me to test.

OK, it's the first time to get a bug report about this.
Could you tell me how did you test it (i.e. which application, which
sound backend)?  Can you confirm that it's reproduced via speaker-test
program in alsa-utils package?

For further debugging, please give the following:
- alsa-info.sh output while playing 5.1 sound
- /proc/asound/card*/eld* contents while playing 5.1 sound

Also, try to update alsa-lib and alsa-utils from alsa-project.org git
tree, and build alsa-lib/test/chmap program.
	% cd alsa-lib/test
	% make chmap

and run like

	./chmap -Dhdmi:1 query

(-Dhdmi:1 might be different depending on the system setup)


thanks,

Takashi