14 May
2019
14 May
'19
8:46 p.m.
My Delta 1010L works fine.
It looks like Jack is running, below.
Maybe you're not getting any sound from the card?
For this card, try a good mixer, to adjust the hardware volumes.
There is envy24, and mudita24, both tailored for this card.
You can also try a general-purpose mixer like QasMixer.
Beyond that have a look at the documentation at the jack website.
It will tell you how to optimize the system by setting various
limits and maybe get rid of the "ERROR: Cannot lock down" message.
One tip I can offer: Extensive tests on different modern multi-core
PCs running either Linux or Windows showed that this card does not
like all CPU cores enabled. Yours might have the same problem.
Symptoms are popping, crackling, and noise in the sound.
Unless someone has found a better fix, you'd likely want to turn
off all but one core with commands like this, for a quad core CPU:
echo 0 | sudo tee /sys/devices/system/cpu/cpu1/online
echo 0 | sudo tee /sys/devices/system/cpu/cpu2/online
echo 0 | sudo tee /sys/devices/system/cpu/cpu3/online
Where cpu0 is left running.
(You can also do the same thing with most motherboard BIOS
setup features.)
Tim.
On 5/14/19 6:20 PM, Vinnie Beaumont wrote:
Hi, I am just starting out trying to get a linux based
studio up and
running. I am having a bit of troble getting my sound card to work. I
have been trying to slove the problem myself, reading forums etc but I
get the feeling I'm just going around in circles because I don't
actually know what I am doing. I manage to change the error messages in
jack but not actually solve them. This is the latest output from jack
when I try to start it.
10:11:25.234 Statistics reset.
10:11:25.245 ALSA connection change.
10:11:25.329 D-BUS: Service is available (org.jackaudio.service aka
jackdbus).
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock
10:11:25.407 ALSA connection graph change.
10:12:01.086 D-BUS: JACK server is starting...
10:12:01.199 D-BUS: JACK server was started (org.jackaudio.service aka
jackdbus).
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1,
skipping unlock
Wed May 15 10:12:01 2019: Starting jack server...
Wed May 15 10:12:01 2019: JACK server starting in realtime mode with
priority 10
Wed May 15 10:12:01 2019: self-connect-mode is "Don't restrict self
connect requests"
Wed May 15 10:12:01 2019: ERROR: Cannot lock down 82280346 byte memory
area (Cannot allocate memory)
Wed May 15 10:12:01 2019: Acquired audio card Audio0
Wed May 15 10:12:01 2019: creating alsa driver ...
hw:PCH|hw:PCH|1024|2|48000|0|0|nomon|swmeter|-|32bit
Wed May 15 10:12:01 2019: configuring for 48000Hz, period = 1024 frames
(21.3 ms), buffer = 2 periods
Wed May 15 10:12:01 2019: ALSA: final selected sample format for
capture: 32bit integer little-endian
Wed May 15 10:12:01 2019: ALSA: use 2 periods for capture
Wed May 15 10:12:01 2019: ALSA: final selected sample format for
playback: 32bit integer little-endian
Wed May 15 10:12:01 2019: ALSA: use 2 periods for playback
Wed May 15 10:12:01 2019: graph reorder: new port 'system:capture_1'
Wed May 15 10:12:01 2019: New client 'system' with PID 0
Wed May 15 10:12:01 2019: graph reorder: new port 'system:capture_2'
Wed May 15 10:12:01 2019: graph reorder: new port 'system:playback_1'
Wed May 15 10:12:01 2019: graph reorder: new port 'system:playback_2'
Wed May 15 10:12:01 2019: New client 'PulseAudio JACK Sink' with PID
1324
Wed May 15 10:12:01 2019: Connecting 'PulseAudio JACK Sink:front-left'
to 'system:playback_1'
Wed May 15 10:12:01 2019: Connecting 'PulseAudio JACK Sink:front-right'
to 'system:playback_2'
Wed May 15 10:12:01 2019: New client 'PulseAudio JACK Source' with PID 1324
Wed May 15 10:12:01 2019: Connecting 'system:capture_1' to 'PulseAudio
JACK Source:front-left'
Wed May 15 10:12:01 2019: Connecting 'system:capture_2' to 'PulseAudio
JACK Source:front-right'
Wed May 15 10:12:02 2019: Saving settings to
"/home/vinnie/.config/jack/conf.xml" ...
10:12:03.253 JACK connection change.
10:12:03.254 Server configuration saved to "/home/vinnie/.jackdrc".
10:12:03.254 Statistics reset.
10:12:03.262 Client activated.
10:12:03.263 Patchbay deactivated.
10:12:03.356 JACK connection graph change.
Wed May 15 10:12:03 2019: New client 'qjackctl' with PID 2727
Anyway if anyone can point me into a direction of where to start reading
so I can get some understanding of what I am doing/should be doing that
would be much apperciated.
Thanks
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