troubleshooting my sound card ...

[Albretch]

While booting knoppix complains about my sound device. I see messages scroll that look like this:

[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:

$ 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

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

[dram]

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.