[LAU] running jackd from rc.local

[Athanasios Silis]

hi there,
which distro are you using.
if you're using ubuntu* then the fact that it asks for X is related to you
using the jack-dbus. compile a jack version without dbus support and you'll
be fine.

also the guys are jack-devel mail list have been more than helpful.
apparently to get elevated permission while rc.local is executed you need
to uncomment in /etc/pam.d/su
    session    required   pam_limits.so

but generally speaking, rc.local is a BAD way to do boot startups in
ubuntu* and this is because ubuntu*   set device permissions based on
the *logged
in* user.
It is advised to use the autostart utilities of you desktop environment,
which is what I will do now.

On Fri, Apr 17, 2015 at 3:18 PM, Ede Wolf <listac at nebelschwaden.de> wrote:

> Great you've asked, I am having the same problem. "su - user" does not
> work, but logging in as user and run the same command does. Happens with
> both, jack and jack2. With jack2 I am also getting an error that it can't
> open X, wenn run from command line. But that maybe an issue specific to the
> jack2 version of arch, as there is no reason why jackd should need a
> display.
>
>
>
>
> Am 17.04.2015 um 11:40 schrieb Athanasios Silis:
>
>> Hi all,
>> I am trying to run jackd instance from /etc/rc.local (along with a few
>> other applications) from a custom made init script.
>>
>> The system is ubuntustudio and I have setup everything to have elevated
>> permissions when executing applications from the @audio group.
>>
>> so when I am logged on, I see this:
>> nass at starkill:~$ ulimit -r -l
>> real-time priority              (-r) 95
>> max locked memory       (kbytes, -l) unlimited
>>
>> which is expected and I can execute the script I wrote.
>>
>> but, when I execute my script from /etc/rc.local as
>> su - nass -c "ulimits -r -l cd audio_setup/scripts ; bash ./start_audio"
>> then my user does not (yet?) have elevated permissions.
>>
>> real-time priority              (-r) 0
>> max locked memory       (kbytes, -l) 64
>>
>> is there a script I can run before my start_audio script to elevate my
>> permissions?
>>
>> thank you
>>
>>
>> _______________________________________________
>> Linux-audio-user mailing list
>> Linux-audio-user at lists.linuxaudio.org
>> http://lists.linuxaudio.org/listinfo/linux-audio-user
>>
>>
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