11 Nov
2006
11 Nov
'06
2:25 p.m.
Rui,
I clicked 'Applications > Sound & Video > JACK Control' from the
Ubuntu/Gnome GUI as normal user. I do not know what the realtime-lsm
module is or pam security rlimits are. Could you elabourate or direct
me to some reading material?
Thanks,
Dave
Rui Nuno Capela wrote:
Patrick Shirkey
wrote:
>David Froseth wrote:
>
>
>>I am trying to get jackd, qjackctl, and alsa working on a pentium d
>>desktop running ubuntu edgy. I am getting these error messages when
>>I start qjackctl:
>>
>>..........
>>
>>ALSA: final selected sample format for capture: 32bit little-endian
>>ALSA: use 2 periods for capture
>>ALSA: final selected sample format for playback: 32bit little-endian
>>ALSA: use 2 periods for playback
>>12:38:49.469 Could not connect to JACK server as client. Please check
>>the messages window for more info.
>>**** alsa_pcm: xrun of at least 0.024 msecs
>>**** alsa_pcm: xrun of at least 0.012 msecs
>>12:38:57.669 MIDI connection change.
>>**** alsa_pcm: xrun of at least 0.534 msecs
>>12:38:58.077 Could not connect to JACK server as client. Please check
>>the messages window for more info.
>>**** alsa_pcm: xrun of at least 0.124 msecs
>>**** alsa_pcm: xrun of at least 2.709 msecs
>>12:39:01.196 JACK is stopping...
>>**** alsa_pcm: xrun of at least 2.769 msecs
>>jack main caught signal 15
>>no message buffer overruns
>>12:39:01.333 JACK was stopped successfully.
>>
>>Any ideas on how to fix this?
>>
>
>There are a few possibilities.
>
>- How are you starting the jack server and which user - root or normal?
>
>- Is this the output from the qjackctrl error window or the command line?
>
>
You didn't answer to the first question, which I think is the major. You
have three possibilities:
1) run everything as root, it might work then but not recommended;
2) run everything as regular user with realtime-lsm module loaded and
properly setup;
3) run everything as regular user with pam security rlimits properly set;
Bye.