On Fri, 29 Mar 2013 23:24:09 +0100, <jonetsu@xxxxxxxxxxxx> wrote:
Actually, jackd (qjackctl) does not see the 1010LT card.
lspci shows:
05:01.0 Multimedia audio controller: VIA Technologies
Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02)
Although qjackctl's message shows:
Fri Mar 29 18:12:41 2013: control device hw:0
I'm fairly sure your m-audio card is at hw:1 in this case. There's no
guarantee in which order the cards end up at each boot.
To make sure you always start your m-audio card, I usually always use the
name. Instead of hw:0 I would use hw:M66. You can get the name from
checking the file /proc/asound/cards as I do below
$ cat /proc/asound/cards
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfe300000 irq 16
1 [M66 ]: ICE1712 - M Audio Delta 66
M Audio Delta 66 at 0xd040, irq 21
2 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfe080000 irq 24
Fri Mar 29 18:12:41 2013: Acquired audio card Audio0
Fri Mar 29 18:12:41 2013: creating alsa driver
... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit
Fri Mar 29 18:12:41 2013: ALSA: final selected sample format for
capture: 32bit integer little-endian
Fri Mar 29 18:12:41 2013: ALSA: use 2 periods for capture
Fri Mar 29 18:12:41 2013: ALSA: final selected sample format for
playback: 32bit integer little-endian
Fri Mar 29 18:12:41 2013: ALSA: use 2 periods for playback
Fri Mar 29 18:12:41 2013: ERROR: Cannot use real-time
scheduling (RR/10)(1: Operation not permitted)
This means you don't have realtime privilege. You need to do two things.
First, make sure you have a file called /etc/security/limits.d/audio.conf
with the contents (if you didn't enable realtime privilege during install,
the file will be named /etc/security/limits.d/audio.conf,disabled):
# Provided by the jackd package.
#
# Changes to this file will be preserved.
#
# If you want to enable/disable realtime permissions, run
#
# dpkg-reconfigure -p high jackd
@audio - rtprio 95
@audio - memlock unlimited
#@audio - nice -19
Second, add yourself to audio group. You can do this with the command:
sudo usermod -a -G audio $USER
Then, reboot for changes to take effect.
Fri Mar 29 18:12:41 2013: ERROR: AcquireSelfRealTime
error
Cannot lock down 82274202 byte memory area (Cannot allocate
memory)
And qjackctl ony has two capture inputs, instead of the ones from
the 1010LT card. The two errors in there made me look at a low
latency kernel. Now, I'm not sure if it would solve the problem.
So, these errors have nothing to do with the kernel. A realtime kernel
does not provide realtime privilege.
You accidentally sent this mail directly to me ;)
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