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 >> Sent: Sunday, December 15, 2024 9:07 PM >> To: Linux Sound Mailing List >> Cc: Kailang ; Takashi Iwai ; Linux >> Kernel Mailing List ; Linux Regressions Mailing >> List ; Linux Stable Mailing List >> >> 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