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shaylocomotive 11-19-2012 10:08 PM

Microphone not working on Slackware64 14
2 Attachment(s)
I purchased ASUS P8Z68-V PRO motherboard which has Realtek ALC892 audio chip.

The Audio works out of box except the microphone (pink port on the back).
Here is my configuration.
Loaded Modules

# lsmod | grep snd
snd_seq_oss 29944 0
snd_seq_midi_event 5620 1 snd_seq_oss
snd_seq 52257 4 snd_seq_midi_event,snd_seq_oss
snd_seq_device 5516 2 snd_seq,snd_seq_oss
snd_pcm_oss 39311 0
snd_mixer_oss 15596 3 snd_pcm_oss
snd_hda_codec_hdmi 24057 1
snd_hda_codec_realtek 195474 1
snd_hda_intel 23267 4
snd_hda_codec 81925 3 snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi
snd_hwdep 6484 1 snd_hda_codec
snd_pcm 74580 4 snd_hda_codec,snd_hda_intel,snd_hda_codec_hdmi,snd_pcm_oss
snd_page_alloc 7241 2 snd_pcm,snd_hda_intel
snd_timer 18894 2 snd_pcm,snd_seq
snd 60297 16 snd_timer,snd_pcm,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi,snd _mixer_oss,snd_pcm_oss,snd_seq_device,snd_seq,snd_seq_oss
soundcore 5474 3 snd

cat /proc/asound/card0/codec#0
Codec: Realtek ALC892
Address: 0

cat /proc/asound/card0/codec#3
Codec: Intel CougarPoint HDMI
Address: 3
AFG Function Id: 0x1 (unsol 0)
I tried several options in /etc/modprobe.d/sound.conf. None of them works.

# cat /etc/modprobe.d/sound.conf
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
#options snd-hda-intel model=intel-alc889a position_fix=2
#options snd-hda-intel model=intel-alc892 position_fix=2
#options snd-hda-intel model=intel-alc892
options snd-hda-intel model=auto

# arecord -L
Discard all samples (playback) or generate zero samples (capture)
HDA Intel PCH, ALC892 Analog
Default Audio Device
HDA Intel PCH, ALC892 Analog
Default Audio Device
HDA Intel PCH, ALC892 Analog
Front speakers
HDA Intel PCH, ALC892 Analog
4.0 Surround output to Front and Rear speakers
HDA Intel PCH, ALC892 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
HDA Intel PCH, ALC892 Analog
5.0 Surround output to Front, Center and Rear speakers
HDA Intel PCH, ALC892 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
HDA Intel PCH, ALC892 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
Xfce Mixer has the microphone options. However, none of them works (see attached screenshots). If I turned on Rear Mic Boost, the static sound comes out of speakers.

Does anyone run into the same problem? Any helps will be appreciated.

markush 11-20-2012 02:12 AM

And what does the "capture" tab of alsamixer show?


shaylocomotive 11-20-2012 09:40 AM

1 Attachment(s)
The capture screen displays Capture and Capture 1 (See the attachment).

I have been struggling with this issue since I purchased the new motherboard. I had the same issue on Slackware64 13.37. Installing Slackware64 14 didn't solve the issue. I also downloaded, complied and installed the drivers from Realtek website. No luck at all.

markush 11-20-2012 10:50 AM

What happens when you click "Select Controls ..." in the captures tab?


shaylocomotive 11-20-2012 05:41 PM

1 Attachment(s)
It lists all available control options.

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