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.