From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755542AbbE2Hhx (ORCPT ); Fri, 29 May 2015 03:37:53 -0400 Received: from cantor2.suse.de ([195.135.220.15]:35454 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755077AbbE2Hhq (ORCPT ); Fri, 29 May 2015 03:37:46 -0400 Date: Fri, 29 May 2015 09:37:44 +0200 Message-ID: From: Takashi Iwai To: Jeremiah Mahler Cc: linux-kernel@vger.kernel.org, Jaroslav Kysela , alsa-devel@alsa-project.org Subject: Re: [BUG, bisect] ALSA: hda - No sound output In-Reply-To: <20150529072714.GA1338@hudson.localdomain> References: <20150529072714.GA1338@hudson.localdomain> 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/24.5 (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: X-Mailing-List: linux-kernel@vger.kernel.org At Fri, 29 May 2015 00:27:14 -0700, Jeremiah Mahler wrote: > > Takashi, all, > > On several of my machines there is no longer any sound output when > running the latest linux-next (20150528). Activity can be seen in a > mixer such as pavucontrol suggesting that there should be sound, but > both the speakers and head phones are silent. > > I have bisected the kernel and found that the following patch introduced > the bug. > > From 49fb18972581a781658a4637de76e6069ed5964e Mon Sep 17 00:00:00 2001 > From: Takashi Iwai > Date: Wed, 27 May 2015 08:37:19 +0200 > Subject: [PATCH] ALSA: hda - Set stream_pm ops automatically by generic parser > > This allows user to test power_save_node feature via sysfs or patch > firmware even on the codecs that don't specify it. It'll also save a > few lines. > > Signed-off-by: Takashi Iwai > --- > sound/pci/hda/hda_generic.c | 5 ++++- > sound/pci/hda/patch_realtek.c | 1 - > sound/pci/hda/patch_sigmatel.c | 1 - > sound/pci/hda/patch_via.c | 1 - > 4 files changed, 4 insertions(+), 4 deletions(-) I still don't figure out why this breaks. Could you give alsa-info.sh output of the affected machine? thanks, Takashi