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[Yuri <yuri.senes@xxxxxxxxx>]

Dear Len,

I have modified the group setting and now the program is working properly.
Thank you very much for your help.

Kind regards.
Yuri


Il 17/02/2015 23:14, Len Ovens ha scritto:
> Can you please attach /etc/security/limits.conf and confirm that this
> user in in the audio groups. (type groups in a terminal) Also please
> include the output of uname -a
>
> It sounds like you do not have the right permissions set for this user
> to do low latency audio. In UbuntuStudio, the user setup in the install
> is the only user on the system that is correctly set up to do audio
> work. Any new user created after that will have to be added to the audio
> group. Ardour2 and Ardour3 can be setup to run without trying to lock
> memory or use realtime, but it is not a good way to run things. Ardour3
> may complain about things Ardour2 silently ignored too.
>

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https://bugs.launchpad.net/bugs/1422682

Title:
  Ardour 3 - Jack can't use real-time scheduling (RR/5)

Status in Ubuntu Studio:
  New

Bug description:
  Ardour 2.8.16 looks to work properly but if I try to use Ardour 3, the following message appears and impede to the program to load: 
  -Error JACK cannot use real time scheduling RR/5 - 1: operation not allowed
  - Error Jack Jack client aquired self read time error
  - worning: your system has a limit for a maximum amount of self lock memory
  - impossible to load the session
  -Jack cannot create thread res=1

  the limit of the system (by typing "ulead -l" in terminal emulator) is
  64

  System in use:
  - Lenovo ideapad Z500 - Core I7
  - Roland VG99 guitar syntesizer via USB

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