I seem to have the exact same issue but removing ~/.pulse/ did not solve
it (it also gets recreated rather quickly). I blew it away, logged out,
rebooted, repeated, etc. Tried all of this as root, as my user, etc.
However, it appears as if I have OSS working. Using audacious2 I can
select OSS output and it plays fine via either sound device (But I have
to adjust mixer levels using cmd-line aumix - seems all my other mixers
use alsa and show no devices available).
Because of this, none of the alsa-only audio applications are usable (eg
rhythmbox, alsamixer, etc). Maybe some sort of alsa config clean-out or
reinitialization is in order?
I tried /etc/init.d/alsa-utils reset - not sure what that does... but it
produced a rather long stream of error messages with: "Invalid card
number". Big surprise :)
Note: I think this started with the Karmic upgrade, but it may have
worked the first week, not sure (don't use audio often, apparently).
I've upgraded 5 other machines to Karmic and did not experience this, so
I'm guessing this is either caused by old configs or my particular
hardware on this box...
Here are the relevant items:
(I added the USB dongle to troubleshoot, but this isn't a supported
hardware issue)
$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xd01c0000 irq 22
1 [default ]: USB-Audio - Generic USB Audio Device
Generic USB Audio Device at usb-0000:00:1d.3-2, full
speed
$ alsamixer
alsamixer: function snd_ctl_open failed for default: No such file or directory
$ alsamixer -c0
wrong -c argument '0
$ alsamixer -c1
wrong -c argument '1'
$ tree /dev/snd
/dev/snd
|-- by-id
| `-- usb-0d8c_Generic_USB_Audio_Device-00 -> ../../controlC1
`-- by-path
|-- pci-0000:00:1b.0 -> ../../controlC0
`-- pci-0000:00:1d.3-usb-0:2:1.0 -> ../../controlC1
$ ls -l /dev/controlC0
crw-rw----+ 1 root audio 116, 7 2009-11-16 12:07 /dev/controlC0
(NOTE: I am in the audio group).
$ lsmod | grep snd
snd_usb_audio 90400 0
snd_hda_intel 434100 3
snd_usb_lib 24320 1 snd_usb_audio
snd_hwdep 15108 1 snd_usb_audio
snd_pcm_oss 46336 0
snd_mixer_oss 22656 4 snd_pcm_oss
snd_pcm 82948 3 snd_usb_audio,snd_hda_intel,snd_pcm_oss
snd_seq_dummy 10756 0
snd_seq_oss 37760 0
snd_seq_midi 14336 0
snd_rawmidi 29696 2 snd_usb_lib,snd_seq_midi
snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi
snd_seq 56880 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 29704 2 snd_pcm,snd_seq
snd_seq_device 14988 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 62628 11
snd_usb_audio,snd_hda_intel,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
snd_page_alloc 16904 2 snd_hda_intel,snd_pcm
soundcore 15200 4 snd
--
no sound at all after upgrade from jaunty to karmic
https://bugs.launchpad.net/bugs/464612
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