RE: [REGRESSION] Distorted sound on Acer Aspire A115-31 laptop

[Kailang <kailang@realtek.com>]

Could you record sound via headphone?

I want to know how the voice distortion.

> -----Original Message-----
> From: Evgeny Kapun <abacabadabacaba@gmail.com>
> Sent: Thursday, December 19, 2024 4:34 AM
> To: Kailang <kailang@realtek.com>; Linux Sound Mailing List
> <linux-sound@vger.kernel.org>
> Cc: Takashi Iwai <tiwai@suse.de>; Linux Kernel Mailing List
> <linux-kernel@vger.kernel.org>; Linux Regressions Mailing List
> <regressions@lists.linux.dev>; Linux Stable Mailing List
> <stable@vger.kernel.org>
> Subject: Re: [REGRESSION] Distorted sound on Acer Aspire A115-31 laptop
> 
> 
> External mail.
> 
> 
> 
> 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@gmail.com>
> >> Sent: Sunday, December 15, 2024 9:07 PM
> >> To: Linux Sound Mailing List <linux-sound@vger.kernel.org>
> >> Cc: Kailang <kailang@realtek.com>; Takashi Iwai <tiwai@suse.de>;
> >> Linux Kernel Mailing List <linux-kernel@vger.kernel.org>; Linux
> >> Regressions Mailing List <regressions@lists.linux.dev>; Linux Stable
> >> Mailing List <stable@vger.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@hostname) (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