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I am running Ubuntu 10.10 in dual boot on my iMac 24" machine. It works great except for the fact that the most important thing I need to do, I ...
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  1. #1
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    Line In audio doesn't work


    I am running Ubuntu 10.10 in dual boot on my iMac 24" machine. It works great except for the fact that the most important thing I need to do, I can't. I have a radio hooked up to my iMac that works great for recording radio shows while I am in the OS 10 boot mode. When I boot my iMac into the Ubuntu partition, Audio In does not work at all. If I go to the Sound preference window, there is no audio activity displayed.

    I really hope I can solve my problem because I really love working in the Ubuntu environment and I can't afford to buy a PC (to install Ubuntu on) at the moment. If you require any additional info, please let me know.

  2. #2
    Administrator MikeTbob's Avatar
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    Hello and Welcome.
    I'm not sure if Ubuntu installs alsa by default so you may get a "command not found" error. You can try installing alsa-utils from your system repos if you get that error. Do you see the line in listed if you issue this command?
    Code:
    alsamixer -V all
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  3. #3
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    This is what my alsamixer looks like.
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  4. $spacer_open
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  5. #4
    Administrator MikeTbob's Avatar
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    Strange. Try these commands and post your results...using the code tags please.
    Code:
    sudo lspci
    Code:
    amixer
    Code:
    aplay -l
    Code:
    lsmod
    Code:
    cat /proc/asound/cards
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  6. #5
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    I will do this but what are the code tags?

    Sorry. I figured it out.
    Last edited by rmcellig; 10-24-2010 at 12:04 AM.

  7. #6
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    Code:
    randy@randy-iMac:~$ cat /proc/asound/cards
     0 [Intel          ]: HDA-Intel - HDA Intel
                          HDA Intel at 0x8a400000 irq 44
    randy@randy-iMac:~$
    Code:
    randy@randy-iMac:~$ amixer
    Simple mixer control 'Master',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 64
      Mono:
      Front Left: Playback 64 [100%] [0.00dB] [on]
      Front Right: Playback 64 [100%] [0.00dB] [on]
    Simple mixer control 'PCM',0
      Capabilities: pvolume penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 255
      Mono:
      Front Left: Playback 255 [100%] [0.00dB]
      Front Right: Playback 255 [100%] [0.00dB]
    Simple mixer control 'IEC958',0
      Capabilities: pswitch pswitch-joined cswitch cswitch-joined penum
      Playback channels: Mono
      Capture channels: Mono
      Mono: Playback [on] Capture [off]
    Simple mixer control 'IEC958 Default PCM',0
      Capabilities: pswitch pswitch-joined penum
      Playback channels: Mono
      Mono: Playback [on]
    Simple mixer control 'Beep',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 17 [55%] [-9.00dB] [on]
      Front Right: Playback 17 [55%] [-9.00dB] [on]
    Simple mixer control 'Capture',0
      Capabilities: cvolume cswitch penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 46
      Front Left: Capture 46 [100%] [30.00dB] [on]
      Front Right: Capture 46 [100%] [30.00dB] [on]
    Simple mixer control 'Capture',1
      Capabilities: cvolume cswitch penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 46
      Front Left: Capture 40 [87%] [24.00dB] [on]
      Front Right: Capture 40 [87%] [24.00dB] [on]
    Simple mixer control 'Capture',2
      Capabilities: cvolume cswitch penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 46
      Front Left: Capture 37 [80%] [21.00dB] [on]
      Front Right: Capture 38 [83%] [22.00dB] [on]
    Simple mixer control 'Input Source',0
      Capabilities: cenum
      Items: 'Mic' 'Front Mic' 'Line' 'CD'
      Item0: 'Line'
    Simple mixer control 'Input Source',1
      Capabilities: cenum
      Items: 'Mic' 'Front Mic' 'Line' 'CD'
      Item0: 'CD'
    Simple mixer control 'Input Source',2
      Capabilities: cenum
      Items: 'Mic' 'Front Mic' 'Line' 'CD'
      Item0: 'Mic'
    randy@randy-iMac:~$
    Code:
    randy@randy-iMac:~$ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: Intel [HDA Intel], device 0: ALC889A Analog [ALC889A Analog]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 0: Intel [HDA Intel], device 1: ALC889A Digital [ALC889A Digital]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    randy@randy-iMac:~$
    Code:
    randy@randy-iMac:~$ lsmod
    Module                  Size  Used by
    nls_utf8                1069  1 
    udf                    79366  1 
    nls_iso8859_1           3261  7 
    nls_cp437               4931  7 
    vfat                    9201  7 
    fat                    48240  1 vfat
    binfmt_misc             6599  1 
    rfcomm                 33811  4 
    sco                     7998  2 
    bnep                    9542  2 
    l2cap                  37008  16 rfcomm,bnep
    parport_pc             26058  0 
    ppdev                   5556  0 
    nvidia               9329739  40 
    snd_hda_codec_realtek   266111  1 
    snd_hda_intel          23687  4 
    snd_hda_codec          87736  2 snd_hda_codec_realtek,snd_hda_intel
    snd_hwdep               5232  1 snd_hda_codec
    lib80211_crypt_tkip     7736  0 
    snd_pcm                77492  3 snd_hda_intel,snd_hda_codec
    snd_seq_midi            5164  0 
    applesmc               24900  0 
    wl                   1959533  0 
    snd_rawmidi            18510  1 snd_seq_midi
    snd_seq_midi_event      5951  1 snd_seq_midi
    led_class               2633  1 applesmc
    snd_seq                51277  2 snd_seq_midi,snd_seq_midi_event
    snd_timer              19085  2 snd_pcm,snd_seq
    snd_seq_device          6034  3 snd_seq_midi,snd_rawmidi,snd_seq
    usb_storage            40172  7 
    btusb                  10969  2 
    bluetooth              50500  9 rfcomm,sco,bnep,l2cap,btusb
    lib80211                5058  2 lib80211_crypt_tkip,wl
    usbhid                 36882  0 
    intel_agp              26360  0 
    hid                    67742  1 usbhid
    input_polldev           3491  1 applesmc
    snd                    55721  18 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq_midi_event,snd_seq,snd_timer,snd_seq_device
    soundcore                880  1 snd
    snd_page_alloc          7184  2 snd_hda_intel,snd_pcm
    video                  18712  0 
    output                  1883  1 video
    lp                      7342  0 
    agpgart                32011  2 nvidia,intel_agp
    parport                31492  3 parport_pc,ppdev,lp
    firewire_ohci          21106  0 
    firewire_core          46643  1 firewire_ohci
    crc_itu_t               1383  2 udf,firewire_core
    sky2                   45127  0 
    randy@randy-iMac:~$
    Code:
    randy@randy-iMac:~$ sudo lspci
    [sudo] password for randy: 
    00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
    00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port (rev 03)
    00:07.0 Performance counters: Intel Corporation Device 27a3 (rev 03)
    00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
    00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
    00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02)
    00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
    00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
    00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
    00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
    00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02)
    00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
    00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
    00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
    00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
    00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02)
    01:00.0 VGA compatible controller: nVidia Corporation G73 [GeForce 7300 GT] (rev a1)
    02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 22)
    03:00.0 Network controller: Broadcom Corporation BCM4321 802.11a/b/g/n (rev 01)
    04:03.0 FireWire (IEEE 1394): Texas Instruments TSB82AA2 IEEE-1394b Link Layer Controller (rev 01)
    randy@randy-iMac:~$

  8. #7
    Administrator MikeTbob's Avatar
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    Can you try installing linux-backports-modules-alsa from your repos?? That is not the exact name but it should be very similar.
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  9. #8
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    Which one do I install?
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  10. #9
    Administrator MikeTbob's Avatar
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    Alsa-generic
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    I'd rather be lost at the lake than found at home.

  11. #10
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    When I select linux-backports-modules-alsa-2.6.35-22-generic from the list and go to install it, a window comes up saying that it is going to remove linux-alsa-driver-modules-2.6.35-22-generic. Is that OK?

    What do I do after installing linux-backports-modules-alsa-2.6.35-22-generic?

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