Re: [Jack-Devel] Jack won't start on boot

PrevNext  Index
DateThu, 20 Jul 2017 16:36:32 +0200
From Thomas Brand <[hidden] at trellis dot ch>
To[hidden] at chriscaudle dot org
Cc[hidden] at lists dot jackaudio dot org
In-Reply-ToChris Caudle Re: [Jack-Devel] Jack won't start on boot 
On Thu, July 20, 2017 16:21, Chris Caudle wrote:
> On Thu, July 20, 2017 5:35 am, Yuri wrote:
>
>> The fact that any DBus-linked program requires X indicates some
>> problem. This should never happen.
>
> It did not require X, just that the DISPLAY environment variable be set.
> Explained later by Rowan.
>
>

according to common/Jackdmp.cpp:320 it seems that the environment variable
$JACK_NO_AUDIO_RESERVATION would be the envisioned way to go. i haven't
found this in the manpage, probably it's missing.

what if there would be a variable that if NOT set would fallback when DBus
fails:

#if defined(JACK_DBUS) && defined(__linux__)
    if (getenv("JACK_NO_AUDIO_RESERVATION")) {
        server_ctl = jackctl_server_create(NULL, NULL);
    }
    else {
        server_ctl = jackctl_server_create(audio_acquire, audio_release);
        /* If device reservation with DBus failed and fallback isn't
         * explicitely turned off, try to start without DBus
         */
        if (server_ctl == NULL && !getenv("JACK_NO_DBUS_FALLBACK")) {
            fprintf(stderr, "Failed to connect to DBus. Falling back...\n");
            server_ctl = jackctl_server_create(NULL, NULL);
        }
    }

cheers
Tom
PrevNext  Index

1500561516.23161_0.ltw:2,a <04c935ba60f869503a137139929cc9a7.squirrel at ips73 dot ips dot ch>