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Sat, 5 Feb 2022 07:35:20 +0100 (CET) Received: from int-mx002.mykolab.com (unknown [10.9.13.2]) by mx.kolabnow.com (Postfix) with ESMTPS id 92E4541892; Sat, 5 Feb 2022 07:35:19 +0100 (CET) Received: from ext-subm002.mykolab.com (unknown [10.9.6.2]) by int-mx002.mykolab.com (Postfix) with ESMTPS id 3A41F36E6; Sat, 5 Feb 2022 07:35:19 +0100 (CET) References: <2249898.6YmaLFrJ0H@popigai> From: Thiago Jung Bauermann To: Paxton Evans Cc: help-guix@gnu.org Subject: Re: No sound on laptop after linux-libre 5.15 Date: Sat, 05 Feb 2022 03:32:00 -0300 In-reply-to: Message-ID: <87sfsxakjn.fsf@kolabnow.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=212.103.80.153; envelope-from=bauermann@kolabnow.com; helo=mx.kolabnow.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: "Help-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; 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aspmx1.migadu.com; dkim=pass header.d=kolabnow.com header.s=dkim20160331 header.b=UGEO2UrD; dmarc=pass (policy=quarantine) header.from=kolabnow.com; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -4.33 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=kolabnow.com header.s=dkim20160331 header.b=UGEO2UrD; dmarc=pass (policy=quarantine) header.from=kolabnow.com; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 2DD941146F X-Spam-Score: -4.33 X-Migadu-Scanner: scn1.migadu.com X-TUID: z/GnXoNoJOWZ Hello Paxton, Paxton Evans writes: > On 2021-12-08 23:05, Leo Famulari wrote: >> On Wed, Dec 08, 2021 at 11:34:24PM -0300, Thiago Jung Bauermann wrote: >>> Em quarta-feira, 8 de dezembro de 2021, =C3=A0s 01:55:13 -03, Paxton Ev= ans >>> escreveu: >>> > Rolling back to linux-libre 5.14.21 (guix >>> > ea7233befb9570cce47e5ca71725b285a580cd22) totally fixes this issue. >>> > >>> > Troubleshooting sound issues on GNU/Linux is such a nightmare that I'm >>> > hoping this list can help me, as I don't really know much about how >>> > sound on our favorite OS really works, and don't have enough informat= ion >>> > to file a bug. Can anyone give me pointers on where to start looking? >>> > dmesg on 5.15.6 didn't seem to report anything strange. >>=20 >> Thanks for your report. Everything Thiago said is important, and it >> would also help if you told us what you had tried to do. That is, what >> are you using to make sound? >>=20 >> My basic sound test is to use mpg123 to play an MP3 file. You can use >> the --output option to choose which output to play through, to be sure. >> And you can use --list-modules to see what's available. >>=20 >> On Guix System, we aim to make applications use Pulseaudio by default, >> so you can use `mpg123 --output pulse file.mp3` to test that. You can >> also use `mpg123 --output alsa file.mp3` if you'd rather test ALSA. >>=20 >> Unfortunately I currently cannot test sound on Guix System with >> linux-libre. However, it does work for me on a computer using Guix >> System with a custom kernel. > > In case anyone finds this later, I wanted to update and say that this > was indeed a kernel bug, and fixed in Linux commit > 7f6e3cbbd60044102373f5a7f86d5f4e89a99747 (included in 5.15.17 in both > vanilla and linux-libre). Thank you for the update! It=E2=80=99s always nice to avoid https://xkcd.co= m/979/ --=20 Thanks Thiago