Lost audio output

English Multimedia
1

and I just don’t know where I put it. I had it only a couple of days ago. Rebooting and fiddling have got me nowhere.

Below is what I hope is everything anyone might need to know :slight_smile:

I was able to use my mic to speak with folks over Skype, but they all had to type their comments back.
Help, please? Thank you!

$ head -1 /proc/asound/card*/codec*
==> /proc/asound/card0/codec#0 <==
Codec: Realtek ALC1200

==> /proc/asound/card0/codec#3 <==
Codec: Nvidia MCP77/78 HDMI
$ cat /proc/asound/cards
 0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfe020000 irq 21
 1 [Q9000          ]: USB-Audio - QuickCam Pro 9000
                      Logitech, Inc. QuickCam Pro 9000 at usb-0000:00:02.1-2, high speed
$ uname -a
Linux beethoven 2.6.37.6-0.7-desktop #1 SMP PREEMPT 2011-07-21 02:17:24 +0200 x86_64 x86_64 x86_64 GNU/Linux
$ sudo lspci -vv -s 00:07.0
00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1)
        Subsystem: ASUSTeK Computer Inc. M3N72-D
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (500ns min, 1250ns max)
        Interrupt: pin A routed to IRQ 21
        Region 0: Memory at fe020000 (32-bit, non-prefetchable) [size=16]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
                Address: 0000000000000000  Data: 0000
                Masking: 00000000  Pending: 00000000
        Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
        Kernel driver in use: HDA Intel
$ lsmod|grep '^snd'
snd_pcm_oss            53391  0 
snd_mixer_oss          20225  1 snd_pcm_oss
snd_seq                66675  0 
snd_usb_audio         120010  0 
snd_usbmidi_lib        23849  1 snd_usb_audio
snd_rawmidi            26923  1 snd_usbmidi_lib
snd_seq_device          7770  2 snd_seq,snd_rawmidi
snd_hda_codec_hdmi     28023  1 
snd_hda_codec_realtek   356587  1 
snd_hda_intel          28773  0 
snd_hda_codec         108050  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep               7772  2 snd_usb_audio,snd_hda_codec
snd_pcm               104468  5 snd_pcm_oss,snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer              26774  2 snd_seq,snd_pcm
snd                    84374  14 snd_pcm_oss,snd_mixer_oss,snd_seq,snd_usb_audio,snd_usbmidi_lib,snd_rawmidi,snd_seq_device,snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
snd_page_alloc          9569  2 snd_hda_intel,snd_pcm

[/size]

2

Check the Skype audio output settings. It should point to the proper device. Make test calls to see which setting works.

3

Thank you, but, no, that’s not it. The call to the “echo / sound test service” is not placed because it does not connect to the audio output. I have the same sound problem with Google Voice, You Tube, NPR, NYTimes, etc. I had to read my “Wait, Wait” fix yesterday. I get no sound anywhere. (The Skype sound configurator also says I have PluseAudo server configured and I must use it for volume control. Trying that still gets me no sound.)

Maybe that is it? Something re-activated pulse audio and pulse audio doesn’t work? I fuzzily remember going around and stamping out pulse audio once before. That was long ago. Should I do it again?

4

Found here:
Answer : It appears I have a Pulseaudio problem

This quote:

#5 DenverD April 04th, 2011 - 01:04 pm ET | Report spam
On 04/04/2011 06:34 AM, Ron Gibson wrote:
Display the quote

most folks running SUSE with sound problems find that all the problems
cease when they use YaST to remove pulseaudio…

when i installed 11.3 i made sure pulseaudio was not installed–sound
just worked, and works…

Leading me to wonder, “Why isn’t pulse audio dumped until it is ready for prime time?”

===================

Anyway, a bit of progress: I tried

<tt>pavucontrol</tt>

instead of the
alsa command line tools and I got the message:

Connection failed.  Connection refused.

both as root and as myself. So something somewhere modified some permission on some device somewhere. Cool. :frowning:

5

Getting rid of the web cam (that has a mic) re-enables the on-board audio.