Re: HDA Intel microphone regression in 3.1.0

[Sergey S. Kostyliov]

On 2 November 2011 12:25, Chris Vine <chris@xxxxxxxxxxxxxxxxxxxxx> wrote:
> My Lenovo S12 IdeaPad netbook uses a HDA Intel sound card with Realtek
> ALC269 chip. ÂWith the 3.1.0 kernel, all microphone input (both with the
> internal microphone and any external microphone) is permanently
> muted, although sound output works OK. ÂMicrophone input works correctly
> with the 3.0 and earlier kernels.
Could you please say do you have CONFIG_SND_HDA_GENERIC == y ?
I had experienced the same problem with CONFIG_SND_HDA_GENERIC = y
Turning it off it cured the problem for me.

>
> The only obvious difference between the 3.0 and 3.1 kernels is that
> with kernel 3.0.7, 'dmesg | grep HDA' gives this:
>
> ÂHDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> ÂHDA Intel 0000:00:1b.0: setting latency timer to 64
> Âinput: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input10
> Âinput: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
> Âinput: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
>
> whereas with kernel 3.1.0 it just gives:
>
> Âinput: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input9
> Âinput: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
> Âinput: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
>
> lspci -v gives the following audio hardware information:
>
> Â00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
> Â Â Â ÂSubsystem: Lenovo Device 3be9
> Â Â Â ÂFlags: bus master, fast devsel, latency 0, IRQ 22
> Â Â Â ÂMemory at fc140000 (64-bit, non-prefetchable) [size=16K]
> Â Â Â ÂCapabilities: [50] Power Management version 2
> Â Â Â ÂCapabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
> Â Â Â ÂCapabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
> Â Â Â ÂCapabilities: [100] Virtual Channel
> Â Â Â ÂCapabilities: [130] Root Complex Link
> Â Â Â ÂKernel driver in use: snd_hda_intel
> Â Â Â ÂKernel modules: snd-hda-intel
>
> lsmod | egrep "snd|sound" gives:
>
> Âsnd_seq_dummy      1023 Â0
> Âsnd_seq_oss      Â23792 Â0
> Âsnd_seq_midi_event   Â4408 Â1 snd_seq_oss
> Âsnd_seq        Â39673 Â5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> Âsnd_seq_device     Â4121 Â3 snd_seq_dummy,snd_seq_oss,snd_seq
> Âsnd_pcm_oss      Â33087 Â0
> Âsnd_mixer_oss     Â12647 Â1 snd_pcm_oss
> Âsnd_hda_codec_realtek  205307 Â1
> Âsnd_hda_intel     Â18347 Â2
> Âsnd_hda_codec     Â64459 Â2 snd_hda_codec_realtek,snd_hda_intel
> Âsnd_hwdep        4420 Â1 snd_hda_codec
> Âsnd_pcm        Â57725 Â3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
> Âsnd_timer       Â14567 Â2 snd_seq,snd_pcm
> Âsnd          Â40539 Â15 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
> Âsoundcore        4129 Â1 snd
> Âsnd_page_alloc     Â5445 Â2 snd_hda_intel,snd_pcm
>
> Chris
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