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Could you post the jack output ?dArAzAc wrote:Hello, so I picked up an M-Audio FastTrack Ultra on the whim of it being a "plug & play" USB 2.0 audio interface with the perfect amount of I/O's. I'm having trouble getting Jack to cooperate with it-- It instantly recognized the device as hw:1, the server crashes on startup... Are there some kind of drivers that I need to install for a USB interface?
Thanks for any insight.
http://wiki.linuxmusicians.com/doku.php ... priorities ?Yeri wrote:Now i don't remember exactly how it is done to check a thread's priority with 'ps'.. but I'm sure that there is a way to do so.
Yes.. that's it.. I was looking for the 'H' optionraboof wrote:http://wiki.linuxmusicians.com/doku.php ... priorities ?Yeri wrote:Now i don't remember exactly how it is done to check a thread's priority with 'ps'.. but I'm sure that there is a way to do so.
Jack lists the device as hw:1 Fast Track UltraYeri wrote: Could you post the jack output ?
anyway.. other suggestions:
(1) check in /proc/asound/cards that your m-audio has the id # (where # is the number in hw:#)
(2) make sure that the identifiers of the input and output interfaces are right (hw:1,0 , hw:1,1 , ...)
(3) make sure that your card runs with a high rt priority
* sudo lsusb -v ---> should tell the usb port where your card is connected to
* cat /proc/interrupts ---> should tell the associated irq
* Now i don't remember exactly how it is done to check a thread's priority with 'ps'.. but I'm sure that there is a way to do so.
Hope it helps
Gerard.
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0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf6500000 irq 22
1 [Ultra ]: USB-Audio - Fast Track Ultra
M-Audio Fast Track Ultra at usb-0000:00:1a.7-4, high speedCode: Select all
dar@euclid:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0Code: Select all
sudo modprobe snd-usb-audioThat's pretty strange: I don't think I've seen /proc/asound/cards and 'aplay -l' disagree before. When I unload my soundcard's module, it disappears from both /proc/asound/cards and aplay.dArAzAc wrote:/proc/asound/cardsI think that the issue is ALSA not recognizing the card:Code: Select all
0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xf6500000 irq 22 1 [Ultra ]: USB-Audio - Fast Track Ultra M-Audio Fast Track Ultra at usb-0000:00:1a.7-4, high speedCode: Select all
dar@euclid:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0
I'm now convinced that the issue lies in this somehow, I'm trying to get help via the ALSA IRC with no luck, hmm.raboof wrote: That's pretty strange: I don't think I've seen /proc/asound/cards and 'aplay -l' disagree before. When I unload my soundcard's module, it disappears from both /proc/asound/cards and aplay.
Perhaps ask the alsa guys? I seem to remember they have a quite active irc channel and mailinglist.
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dmesg |tailkaimerra wrote:What is the output ofright after you plug the device in?Code: Select all
dmesg |tail
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[ 68.744361] groups: 01 02
[ 68.744364] CPU1 attaching sched-domain:
[ 68.744365] domain 0: span 03
[ 68.744367] groups: 02 01
[ 69.621572] NET: Registered protocol family 17
[ 73.462090] eth1: no IPv6 routers present
[ 92.328118] eth1: no IPv6 routers present
[ 550.110124] usb 4-4: new high speed USB device using ehci_hcd and address 2
[ 550.228285] usb 4-4: configuration #1 chosen from 2 choices
[ 550.359397] usbcore: registered new interface driver snd-usb-audio
Gladlyraboof wrote:Could you post the output of 'ls -alFh /dev/snd/' ?
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total 0
drwxr-xr-x 2 root root 200 2009-07-24 16:54 ./
drwxr-xr-x 13 root root 14K 2009-07-24 16:54 ../
crw-rw----+ 1 root audio 116, 0 2009-07-24 16:46 controlC0
crw-rw----+ 1 root audio 116, 32 2009-07-24 16:54 controlC1
crw-rw----+ 1 root audio 116, 4 2009-07-24 16:46 hwC0D0
crw-rw----+ 1 root audio 116, 40 2009-07-24 16:54 midiC1D0
crw-rw----+ 1 root audio 116, 24 2009-07-24 16:46 pcmC0D0c
crw-rw----+ 1 root audio 116, 16 2009-07-24 16:48 pcmC0D0p
crw-rw----+ 1 root audio 116, 1 2009-07-24 16:46 seq
crw-rw----+ 1 root audio 116, 33 2009-07-24 16:46 timer
Right - so there really seem to be 2 cards - perhaps there are no PCM devices recognised on the second one? Could you paste 'ls -alFh /proc/asound/card1' ? Normally it should include at least one 'pcm*p' directory.dArAzAc wrote:Code: Select all
crw-rw----+ 1 root audio 116, 0 2009-07-24 16:46 controlC0 crw-rw----+ 1 root audio 116, 32 2009-07-24 16:54 controlC1
Hmm, so ALSA is at least recognizing both cards?raboof wrote: Right - so there really seem to be 2 cards - perhaps there are no PCM devices recognised on the second one? Could you paste 'ls -alFh /proc/asound/card1' ? Normally it should include at least one 'pcm*p' directory.
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total 0
dr-xr-xr-x 2 root root 0 2009-07-24 18:31 ./
dr-xr-xr-x 6 root root 0 2009-07-24 18:31 ../
-r--r--r-- 1 root root 0 2009-07-24 18:31 id
-r--r--r-- 1 root root 0 2009-07-24 18:31 midi0
-rw-r--r-- 1 root root 0 2009-07-24 18:31 oss_mixer
-r--r--r-- 1 root root 0 2009-07-24 18:31 usbbus
-r--r--r-- 1 root root 0 2009-07-24 18:31 usbid