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Thread: No audio on B550 motherboard (ALCS1200 device)

  1. #1

    Default No audio on B550 motherboard (ALCS1200 device)

    Full disclosure: I switched hardware from intel to amd keeping the same boot volume.

    This is what dmesg shows:
    Code:
    [   11.186130] snd_hda_codec_realtek hdaudioC1D0: ALCS1200A: SKU not ready 0x00000000
    [   11.186463] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALCS1200A: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
    [   11.186464] snd_hda_codec_realtek hdaudioC1D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
    [   11.186465] snd_hda_codec_realtek hdaudioC1D0:    hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
    [   11.186465] snd_hda_codec_realtek hdaudioC1D0:    mono: mono_out=0x0
    [   11.186465] snd_hda_codec_realtek hdaudioC1D0:    inputs:
    [   11.186466] snd_hda_codec_realtek hdaudioC1D0:      Front Mic=0x19
    [   11.186467] snd_hda_codec_realtek hdaudioC1D0:      Rear Mic=0x18
    [   11.186468] snd_hda_codec_realtek hdaudioC1D0:      Line=0x1a
    [   11.197346] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input14
    [   11.197405] input: HD-Audio Generic Front Mic as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input15
    [   11.197455] input: HD-Audio Generic Rear Mic as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input16
    [   11.197499] input: HD-Audio Generic Line as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input17
    [   11.197543] input: HD-Audio Generic Line Out as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input18
    [   11.197588] input: HD-Audio Generic Front Headphone as /devices/pci0000:00/0000:00:08.1/0000:0a:00.4/sound/card1/input19
    This is the device in question:
    Code:
    0a:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller [1022:1487]
    Any hint will be appreciated!

  2. #2
    Join Date
    Nov 2009
    Location
    West Virginia Sector 13
    Posts
    15,999

    Default Re: No audio on B550 motherboard (ALCS1200 device)

    run mkinitrd as root to rediscover new hardware.

  3. #3

    Default Re: No audio on B550 motherboard (ALCS1200 device)

    Quote Originally Posted by gogalthorp View Post
    run mkinitrd as root to rediscover new hardware.
    Thanks, but the problem wasn't hardware detection, but rather hardware misassembling.

    After reconnecting the audio cable properly, everything works as it should.

  4. #4
    Join Date
    Nov 2009
    Location
    West Virginia Sector 13
    Posts
    15,999

    Default Re: No audio on B550 motherboard (ALCS1200 device)

    Well you still should run mkinitd after any major hardware change.

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