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Old 04-01-2013, 07:14 PM   #1
eantoranz
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dell xps M1530 - kubuntu 12.10: can't get the mic to work


Hi!

Since I installed kubuntu 12.04 (then updated to 12.10) I've been unable to get the mic to record a single word to any application (say, for example, skype).

Now I have no problem checking step by step wher the problem is but sound is so confusing (alsa, pulse, gstreamer, whatever) that I don't know where/how to check for things. Could you give me a hand?

This is what I can tell you. From dmesg:

Code:
[   24.416346] input: HDA Intel Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[   24.416482] input: HDA Intel Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
I'm wondering why it takes 24 long seconds to go through this but anyway, there it is.

Now if I go into alsamixer, I can see a lot of capture devices:

Code:
 Card: HDA Intel                                                                                                                              F1:  Help               │
│ Chip: SigmaTel STAC9228                                                                                                                      F2:  System information │
│ View: F3: Playback  F4:[Capture] F5: All                                                                                                     F6:  Select sound card  │
│ Item: S/PDIF [Off]                                                                                                                           Esc: Exit               │
│                                                                                                                                                                      │
│                     ┌──┐           ┌──┐           ┌──┐           ┌──┐                                                        ┌──┐           ┌──┐           ┌──┐      │
│                     │  │           │  │           │  │           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │  │           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                     │▒▒│           │  │           │▒▒│           │  │                                                        │  │           │  │           │  │      │
│                    L└──┘R          └──┘           └──┘           └──┘        Front Mic      Front Mic      Front Mic         └──┘           └──┘           └──┘      │
│    -------        CAPTURE        -------        -------                                                                                                              │
│                    86<>86          0<>0          79<>79          0<>0                                                        0<>0           0<>0           0<>0      │
│<    S/PDIF    >   Capture       Capture 1      Capture 2       Digital      Input Source  Input Source 1 Input Source 2      Mux           Mux 1          Mux 2      │
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
So, it appears like the devices can be seen over there. Now, in skype I checked the sound configuration and it's all related to pulseaudio. So my next question would be: How can I make sure pulseaudio is actually working correctly with the mics?

Thanks in advance
 
Old 04-04-2013, 06:44 PM   #2
SharpyWarpy
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Open alsamixer and hit F5. See if "mic" is muted. If it is scroll over to it and hit the m key to unmute.
 
  


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