[alsa-devel] snd-usb endpoint rework

[Felix Homann]

Sorry, I can't help testing at the moment. I'm extremely busy preparing a
couple of shows I'll be playing in the next few weeks.

But Aurélien's problems remind me of an issue I had some weeks ago. The
issue was caused by a jackd process that was unintentionally launched via
D-Bus on start up.

Regards,
Felix
Am 22.05.2012 20:22 schrieb "Aurélien Leblond" <blablack at gmail.com>:

> Hello Daniel,
>
> Here are the results of today's testing.
> I don't know if they'll help in anyway, but here we go.
>
>
> BOOT WITH THE UA-25EX
>
> Trying to use aplay:
>
> blablack at igorito:~$ aplay 10\ -\ Track\ 10-L.wav
> ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
> ALSA lib conf.c:4241:(_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:4241:(_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:4241:(_snd_config_evaluate) function snd_func_refer
> returned error: No such file or directory
> ALSA lib conf.c:4720:(snd_config_expand) Evaluate error: No such file
> or directory
> ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:682: audio open error: No such file or directory
>
> blablack at igorito:~$ aplay -D default:CARD=UA25EX 10\ -\ Track\ 10-L.wav
>
> Second one work ok... Let it play for several minutes and it's all fine.
>
>
> BOOT WITH THE FTU
>
> blablack at igorito:~$ aplay 10\ -\ Track\ 10-L.wav
> ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
> ALSA lib conf.c:4241:(_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:4241:(_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:4241:(_snd_config_evaluate) function snd_func_refer
> returned error: No such file or directory
> ALSA lib conf.c:4720:(snd_config_expand) Evaluate error: No such file
> or directory
> ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:682: audio open error: No such file or directory
>
> blablack at igorito:~$ aplay -D default:CARD=Ultra 10\ -\ Track\ 10-L.wav
>
> No sound...
> I tried to reboot several times, unplug/replug, checked alsamixer: all
> look fine to me but still no sound.
> Actually, it is not "exactly" no sound: I can see the 4 front leds
> flash very quickly, and I can hear a click in the speakers (with the
> FX, the click is longer due to the reverb, handy to notice it!).
>
> Using mplayer...well I don't know if I'm just an idiot or if there is
> a deeper problem, but I can't get the alsa parameter to connect to the
> sound card. And if I don't specify the -ao parameter, I get the same
> error as aplay "cannot find card 0".
>
> Using VLC, I can see that VLC doesn't get stuck but plays something,
> unfortunately, still no sound.
>
>
> In dmesg, I get:
> [    3.031270] usb 2-1.2: new high-speed USB device number 3 using ehci_hcd
> [    3.118175] usb 2-1.2: config 1 interface 3 altsetting 0 bulk
> endpoint 0x7 has invalid maxpacket 8
> [    3.118185] usb 2-1.2: config 1 interface 3 altsetting 0 bulk
> endpoint 0x87 has invalid maxpacket 8
> ...
> [   18.090854] ALSA mixer.c:796 usb-audio: set quirks for FTU Effect
> Feedback/Volume
> [   18.107831] ALSA mixer.c:787 usb-audio: set quirk for FTU Effect
> Duration
> [   18.109496] ALSA mixer.c:796 usb-audio: set quirks for FTU Effect
> Feedback/Volume
>
> The first error message is "ok" I far as I remember, and the second
> message shows the detection of the FTU - all look fine to me...
>
>
>
> IN BOTH CASES, FTU AND UA-25EX
>
> Starting jack result in an immediate freeze of the system.
>
>
> If there is anything else I can provide to you, let me know.
> Hope all this help somehow!
>
> Aurélien
>