On Sun, 15 Dec 2024 14:06:38 +0100, Evgeny Kapun wrote: > > 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 Could you give alsa-info.sh output with broken and working (reverted) states? Run the script with --no-upload option and attach the outputs. thanks, Takashi