A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2321> ====================================================================== Reported By: doobedoobedo Assigned To: Clemens Ladisch ====================================================================== Project: ALSA - driver Issue ID: 2321 Category: USB - usb-audio Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: Gentoo Kernel Version: 2.6.14/5 ====================================================================== Date Submitted: 08-01-2006 16:43 CEST Last Modified: 08-03-2006 20:32 CEST ====================================================================== Summary: no audio and very few mixer options with C-Media 106 based USB sound card Description: no audio output with the snd-usb-audio module amixer output: Simple mixer control 'PCM',0 Capabilities: cvolume cswitch cswitch-joined Capture channels: Front Left - Front Right Limits: Capture 0 - 4095 Front Left: Capture 2048 [50%] [on] Front Right: Capture 2048 [50%] [on] Simple mixer control 'PCM Capture Source',0 Capabilities: enum Items: 'Mic' 'Input 1' 'Input 2' 'Mixer' Item0: 'Mic' Simple mixer control 'PCM',1 Capabilities: cvolume Capture channels: Front Left - Front Right Limits: Capture 0 - 4095 Front Left: Capture 2048 [50%] Front Right: Capture 2048 [50%] Simple mixer control 'Mic',0 Capabilities: pvolume cvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 8191 Capture 0 - 4095 Front Left: Playback 2048 [25%] [off] Capture 2048 [50%] Front Right: Playback 2048 [25%] [off] Capture 2048 [50%] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 8191 Mono: Front Left: Playback 2048 [25%] [on] Front Right: Playback 2048 [25%] [on] Simple mixer control 'Speaker',1 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 37 Mono: Playback 15 [41%] [on] speaker 0 and mic will only decrease in volume in alsamixer, although no sound is played trough the speakers at all. ====================================================================== ---------------------------------------------------------------------- rlrevell - 08-03-06 19:15 ---------------------------------------------------------------------- slave.pcm "snd-usb-audio" is wrong, it should be something like slave.pcm hw:0,0 (replace hw:0,0 with the correct device ID) ---------------------------------------------------------------------- doobedoobedo - 08-03-06 20:32 ---------------------------------------------------------------------- Thanks for the suggestion $ cat .asoundrc pcm.swapchannels { type route slave.pcm hw:1,0 #slave.channels 6 ttable.0.0 1 ttable.1.1 1 ttable.2.2 1 ttable.3.3 1 ttable.4.4 1 ttable.5.5 1 } $ aplay -D swapchannels sound/Surround-SDL-testfiles/chan-id.wav ALSA lib conf.c:1587:(snd_config_load1) _toplevel_:49:0:Unexpected char ALSA lib conf.c:2827:(snd_config_hook_load) /home/ron/.asoundrc may be old or corrupted: consider to remove or fix it ALSA lib conf.c:2691:(snd_config_hooks_call) function snd_config_hook_load returned error: Invalid argument ALSA lib conf.c:3054:(snd_config_update_r) hooks failed, removing configuration aplay: main:547: audio open error: Invalid argument Then if I remove .asoundrc $ aplay -c6 -D hw:1,0 sound/Surround-SDL-testfiles/chan-id.wav Playing WAVE 'sound/Surround-SDL-testfiles/chan-id.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Channels 6 aplay: set_params:906: Channels count non available However the following works (albeit with swapped channels) $ aplay -D plughw:1,0 sound/Surround-SDL-testfiles/chan-id.wav Playing WAVE 'sound/Surround-SDL-testfiles/chan-id.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Channels 6 Issue History Date Modified Username Field Change ====================================================================== 08-01-06 16:43 doobedoobedo New Issue 08-01-06 16:43 doobedoobedo Distribution => Gentoo 08-01-06 16:43 doobedoobedo Kernel Version => 2.6.14/5 08-01-06 16:51 doobedoobedo Issue Monitored: doobedoobedo 08-01-06 16:54 doobedoobedo Note Added: 0011376 08-03-06 03:40 doobedoobedo Note Added: 0011393 08-03-06 17:34 doobedoobedo Note Added: 0011404 08-03-06 19:15 rlrevell Note Added: 0011407 08-03-06 20:32 doobedoobedo Note Added: 0011408 ====================================================================== ------------------------------------------------------------------------- Take Surveys. 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