Raymond Yau wrote:
Andoru wrote:
The last time you replied you said that it's a hardware error. If it is that way then how come the card otherwise works flawlessly in Windows, and this doesn't happen on Debian when watching videos or with certain programs?
The Linux driver seem sharing two Dma channels with at least two playback devices and capture device
The logic seem allow front and rear playing different audio but no capture Multi channel playback but no capture
open three terminals and try different combination of
speaker-test -c2 -t wav -D front
This gives me: ___________________________________________________
speaker-test 1.0.27.2
Playback device is front Stream parameters are 48000Hz, S16_LE, 2 channels WAV file(s) ALSA lib confmisc.c:768:(parse_card) cannot find card '1' ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM front Playback open error: -2,No such file or directory ____________________________________________________
speaker-test -c2 -t wav -D rear
This gives me the same as above. (except the playback device is "rear" not "front", as expected)
arecord -f dat -D plughw:0,0
This just prints a bunch of random characters continiously unless I quit.
speaker-test -c4 -t wav -D surround40
Same as the first issued command.
speaker-test -c6 -t wav -D surround51
As expected... same as above.