linux-kernel - Re: [REGRESSION] Distorted sound on Acer Aspire A115-31 laptop

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <0625722b-5404-406a-b571-ff79693fe980@gmail.com>
Date: Wed, 18 Dec 2024 22:33:35 +0200
From: Evgeny Kapun <abacabadabacaba@...il.com>
To: Kailang <kailang@...ltek.com>,
 Linux Sound Mailing List <linux-sound@...r.kernel.org>
Cc: Takashi Iwai <tiwai@...e.de>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Regressions Mailing List <regressions@...ts.linux.dev>,
 Linux Stable Mailing List <stable@...r.kernel.org>
Subject: Re: [REGRESSION] Distorted sound on Acer Aspire A115-31 laptop

Hi Kailang,

Here are the results of running the script on kernel versions 6.12.5 
(affected) and 6.7.11 (not affected).

On 12/16/24 04:07, Kailang wrote:
> Hi Kapun,
>
> Please run attach script as below.
>
> ./alsa-info.sh --no-upload
>
> Then send back the result.
>
>> -----Original Message-----
>> From: Evgeny Kapun <abacabadabacaba@...il.com>
>> Sent: Sunday, December 15, 2024 9:07 PM
>> To: Linux Sound Mailing List <linux-sound@...r.kernel.org>
>> Cc: Kailang <kailang@...ltek.com>; Takashi Iwai <tiwai@...e.de>; Linux
>> Kernel Mailing List <linux-kernel@...r.kernel.org>; Linux Regressions Mailing
>> List <regressions@...ts.linux.dev>; Linux Stable Mailing List
>> <stable@...r.kernel.org>
>> Subject: [REGRESSION] Distorted sound on Acer Aspire A115-31 laptop
>>
>>
>> External mail.
>>
>>
>>
>> I am using an Acer Aspire A115-31 laptop. When running newer kernel
>> versions, sound played through headphones is distorted, but when running
>> older versions, it is not.
>>
>> Kernel version: Linux version 6.12.5 (user@...tname) (gcc (Debian
>> 14.2.0-8) 14.2.0, GNU ld (GNU Binutils for Debian) 2.43.50.20241210) #1 SMP
>> PREEMPT_DYNAMIC Sun Dec 15 05:09:16 IST 2024 Operating System: Debian
>> GNU/Linux trixie/sid
>>
>> No special actions are needed to reproduce the issue. The sound is distorted all
>> the time, and it doesn't depend on anything besides using an affected kernel
>> version.
>>
>> It seems to be caused by commit
>> 34ab5bbc6e82214d7f7393eba26d164b303ebb4e
>> (ALSA: hda/realtek - Add Headset Mic supported Acer NB platform).
>> Indeed, if I remove the entry that this commit adds, the issue disappears.
>>
>> lspci output for the device in question:
>>
>> 00:0e.0 Multimedia audio controller [0401]: Intel Corporation Celeron/Pentium
>> Silver Processor High Definition Audio [8086:3198] (rev 06)
>>       Subsystem: Acer Incorporated [ALI] Device [1025:1360]
>>       Flags: bus master, fast devsel, latency 0, IRQ 130
>>       Memory at a1214000 (64-bit, non-prefetchable) [size=16K]
>>       Memory at a1000000 (64-bit, non-prefetchable) [size=1M]
>>       Capabilities: [50] Power Management version 3
>>       Capabilities: [80] Vendor Specific Information: Len=14 <?>
>>       Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>       Capabilities: [70] Express Root Complex Integrated Endpoint, IntMsgNum
>> 0
>>       Kernel driver in use: snd_hda_intel
>>       Kernel modules: snd_hda_intel, snd_soc_avs, snd_sof_pci_intel_apl
View attachment "alsa-info-6.7.11.txt" of type "text/plain" (36777 bytes)

View attachment "alsa-info-6.12.5.txt" of type "text/plain" (36384 bytes)