20 Jul
2005
20 Jul
'05
1:54 p.m.
Hi
I'm trying to get jack running with my Edirol UA-1A USB soundcard. The
card works well with alsa (so no jack) but my system freezes after a
while (often when a client, fx xmms or ams) disconnects. Anybody has a
clue how to proceed or what could be wrong?
Here's some hopefully relevant info:
atte@aarhus:~$ cat .jackdrc
/usr/bin/jackd -R -dalsa -dhw:1 -r44100 -p256 -n3
atte@aarhus:~$ cat /proc/asound/cards
0 [SI7012 ]: ICH - SiS SI7012
SiS SI7012 with ALC200,200P at 0xdc00, irq 10
1 [UA1A ]: USB-Audio - EDIROL UA-1A
Roland EDIROL UA-1A at usb-0000:00:03.1-2, full speed
atte@aarhus:~$ cat /etc/modutils/alsa
alias char-major-116 snd
alias char-major-14 soundcore
# i810
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-card-0
# ua-1a
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss
alias snd-card-1 snd-usb-audio
alias sound-slot-1 snd-card-1
# virtual midi
alias sound-service-2-1 snd-seq-oss
alias sound-service-2-8 snd-seq-oss
alias snd-card-2 snd-virmidi
alias sound-slot-2 snd-card-2
#evolution 1
alias snd-card-3 snd-usb-audio
alias sound-slot-3 snd-card-3
#evolution 2
alias snd-card-4 snd-usb-audio
alias sound-slot-4 snd-card-4
#
options snd-intel8x0 index=0
options snd-usb-audio index=1,3,4 vid=0x0582
--
.''`. Peace, love & harmony
: :' : Atte
`. `'
`- http://www.atte.dk
20 Jul
20 Jul
5:21 p.m.
options snd-intel8x0 index=0
options snd-usb-audio index=1,3,4 vid=0x0582
Something that should improve a lot :
add the option nrpacks=1 to the module snd-usb-audio and check this :
$ zcat /proc/config.gz | grep -e CONFIG_EXPERIMENTAL -e USB_BANDWIDTH
if the output is this :
CONFIG_EXPERIMENTAL=y
# CONFIG_USB_BANDWIDTH is not set
you are okay :) You can put a period of 3 to jackd and tweak the frames as
you need.
if not, good kernel compilation !
Regards
Philippe
10:09 p.m.
Dubphil wrote:
add the option nrpacks=1 to the module snd-usb-audio
and check this :
$ zcat /proc/config.gz | grep -e CONFIG_EXPERIMENTAL -e USB_BANDWIDTH
if the output is this :
CONFIG_EXPERIMENTAL=y
# CONFIG_USB_BANDWIDTH is not set
I don't understand what nrpacks=1 does. I don't have /proc/config.gz,
but my kernel config is in /boot/
aarhus:~# cat /boot/config-2.6.12-3-multimedia-386 | grep -e
CONFIG_EXPERIMENTAL -e USB_BANDWIDTH
CONFIG_EXPERIMENTAL=y
CONFIG_USB_BANDWIDTH=y
My initial test (without the edirol connected to sound system) seems to
indicate that it's more stable now. But I'm not sure jack is connecting
to alsa in the correct way. At least xmms complains with something like
"jacks not running". Alsa although ams seems to work fine it doesn't
show up in the jack client list in qjackctl...
Am I out of luck?
--
.''`. Peace, love & harmony
: :' : Atte
`. `'
`- http://www.atte.dk
21 Jul
21 Jul
7:06 a.m.
Atte André Jensen wrote:
I'm trying to get jack running with my Edirol
UA-1A USB soundcard. The
card works well with alsa (so no jack) but my system freezes after a
while (often when a client, fx xmms or ams) disconnects.
This doesn't quite look like an ALSA or USB problem because jack
continues to access the sound device event when no client is
connected.
Does it freeze too if you use jack with the onboard device (hw:0)?
Regards,
Clemens
8 a.m.
Clemens Ladisch wrote:
This doesn't quite look like an ALSA or USB
problem because jack
continues to access the sound device event when no client is
connected.
Hmmm...
Does it freeze too if you use jack with the onboard
device (hw:0)?
No, never. That is an onboard i810.
I'm still *very* interrested in help in getting the system more stable
as I had to do a few tricks to make the system glitch free. Here's what
I did to make it bearable for now:
1) added the "magic" option nrpacks=1 to my /etc/init.d/alsa. this made
the system stable
2) running jackd with "-R -dalsa -dhw:1 -r44100 -p128 -n3 -P, so only
playback (which is ok for now, I'm mostly running softsynths live) and a
latency of 8.7 ms (according to qjackctl) which is ok too. this was the
best setting I could come up with...
3) there were occational glitches (not xruns) in the sound under gnome,
so I went back to my beloved openbox (don't know why I left it in the
first place)
--
.''`. Peace, love & harmony
: :' : Atte
`. `'
`- http://www.atte.dk
7067
days inactive
7068
days old
linux-audio-user@lists.linuxaudio.org
4 comments
3 participants
participants (3)
-
Atte André Jensen -
Clemens Ladisch -
Dubphil