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Thread: troubleshooting my sound card ...

  1. #1
    Senior Member registered user
    Join Date
    Dec 2004
    Posts
    168

    troubleshooting my sound card ...

    While booting knoppix complains about my sound device. I see messages scroll that look like this:
    Code:
    [0x82631c0] main services discovery error: no suitable services discovery module
    grepHelper: File does not exists:  "/proc/asound/card1/pcm0p/info" 
    ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
    
    ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
    This is what I see in dmesg:
    Code:
    $ cat dmesg | grep -i radeon
    [   15.645268] [drm] radeon kernel modesetting enabled.
    [   15.645522] radeon 0000:01:00.0: power state changed by ACPI to D0
    [   15.645533] radeon 0000:01:00.0: power state changed by ACPI to D0
    [   15.654309] radeon 0000:01:00.0: VRAM: 512M 0x0000000000000000 - 0x000000001FFFFFFF (512M used)
    [   15.654317] radeon 0000:01:00.0: GTT: 512M 0x0000000020000000 - 0x000000003FFFFFFF
    [   15.661353] [drm] radeon: 512M of VRAM memory ready
    [   15.661358] [drm] radeon: 512M of GTT memory ready.
    [   15.661513] radeon 0000:01:00.0: irq 45 for MSI/MSI-X
    [   15.661538] radeon 0000:01:00.0: radeon: using MSI.
    [   15.661595] [drm] radeon: irq initialized.
    [   15.664687] [drm] radeon: ib pool ready.
    [   16.178679] radeon 0000:01:00.0: WB enabled
    [   16.232432] [drm] Radeon Display Connectors
    [   16.232643] [drm] radeon: power management initialized
    [   17.702626] fbcon: radeondrmfb (fb0) is primary device
    [   18.171419] fb0: radeondrmfb frame buffer device
    [   18.171429] [drm] Initialized radeon 2.13.0 20080528 for 0000:01:00.0 on minor 0
    
    $ cat dmesg | grep -i sound
    [    1.688609]   No soundcards found.
    
    $ cat dmesg | grep -i alsa
    [    1.688605] ALSA device list:
     
    [    1.688605] ALSA device list:
    [    1.688609]   No soundcards found.
    ...
    [   16.232488] [drm] Connector 3:
    [   16.232492] [drm]   HDMI-A
    [   16.232495] [drm]   HPD1
    [   16.232501] [drm]   DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c
    [   16.232505] [drm]   Encoders:
    [   16.232509] [drm]     DFP1: INTERNAL_UNIPHY
    [   16.232643] [drm] radeon: power management initialized
    The only sound-related cheatcode I found "knoppix alsa" didn't work on my box.

    This is what "lspci -v" tells me about my audio device
    Code:
    01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV620 HDMI Audio [Radeon HD 3400 Series]
     Subsystem: Hewlett-Packard Company Device 3600
     Flags: bus master, fast devsel, latency 0, IRQ 47
     Memory at d2310000 (32-bit, non-prefetchable) [size=16K]
     Capabilities: <access denied>
     Kernel driver in use: snd_hda_intel
    
    $ lspci -vv -k -t
    -[0000:00]-+-00.0  Advanced Micro Devices [AMD] RS780 Host Bridge
               +-02.0-[01]--+-00.0  Advanced Micro Devices [AMD] nee ATI RV620 [Mobility Radeon HD 3400 Series]
                            \-00.1  Advanced Micro Devices [AMD] nee ATI RV620 HDMI Audio [Radeon HD 3400 Series]
    How can I fix or do more troubleshooting on my sound card?
    lbrtchx
    Last edited by Albretch; 08-02-2012 at 11:41 AM.

  2. #2
    Junior Member registered user
    Join Date
    Jun 2008
    Posts
    18
    Sometimes I've had to tell Mplayer to specifically use ALSA instead of pulse-audio or default audio output in the player settings.

    Then, sometimes follow up by bringing up alsamixer in a terminal, and bring up the master and sometimes the pcm levels. I run a persistent image, so the settings tend to stay fixed upon the next reboot.

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