Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946784AbbEBTc0 (ORCPT ); Sat, 2 May 2015 15:32:26 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:45706 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946768AbbEBTcV (ORCPT ); Sat, 2 May 2015 15:32:21 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, David Henningsson , Takashi Iwai Subject: [PATCH 3.19 083/177] ALSA: hda - fix "num_steps = 0" error on ALC256 Date: Sat, 2 May 2015 21:01:45 +0200 Message-Id: <20150502190123.236006280@linuxfoundation.org> X-Mailer: git-send-email 2.3.7 In-Reply-To: <20150502190119.666291882@linuxfoundation.org> References: <20150502190119.666291882@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1898 Lines: 54 3.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Henningsson commit 7d1b6e29327428993ba568bdd8c66734070f45e0 upstream. The ALC256 does not have a mixer nid at 0x0b, and there's no loopback path (the output pins are directly connected to the DACs). This commit fixes an "num_steps = 0 for NID=0xb (ctl = Beep Playback Volume)" error (and as a result, problems with amixer/alsamixer). If there's pcbeep functionality, it certainly isn't controlled by setting an amp on 0x0b, so disable beep functionality (at least for now). BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446517 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_realtek.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5454,6 +5454,7 @@ static int patch_alc269(struct hda_codec break; case 0x10ec0256: spec->codec_variant = ALC269_TYPE_ALC256; + spec->gen.mixer_nid = 0; /* ALC256 does not have any loopback mixer path */ break; } @@ -5467,8 +5468,8 @@ static int patch_alc269(struct hda_codec if (err < 0) goto error; - if (!spec->gen.no_analog && spec->gen.beep_nid) - set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT); + if (!spec->gen.no_analog && spec->gen.beep_nid && spec->gen.mixer_nid) + set_beep_amp(spec, spec->gen.mixer_nid, 0x04, HDA_INPUT); codec->patch_ops = alc_patch_ops; #ifdef CONFIG_PM -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/