[PD] Application initialization failed: no display name and no $DISPLAY environment variable

[Alexandros Drymonitis]

Just a follow up, Pd by default had imx-hdmi-soc (hardware) selected as an
input and output audio device. Changing it to vt1613-audio (hardware)
solved the problem and now I do have audio. How can I set this as a
default? Every time I open Pd, I have to go to Audio Settings to change
this.

There's something else that seems a bit strange to me (according to my very
limited linux experience), in /etc/security/ there's a limits.d directory
but there's nothing in that directory. Shouldn't there be something like a
"90-realtime-base.conf" file includint the following lines:
@realtime   -   rtprio    99
@realtime   -   memlock unlimited

Should I create it?


On Sat, Mar 22, 2014 at 10:11 PM, Alexandros Drymonitis <adrcki at gmail.com>wrote:

> Super, it worked! Though, I tried to open the Test audio and midi patch
> and the Pd window was gone. I stopped the session with ^C and started it
> again, opened a new window and put an [osc~ 440] connected to [dac~],
> turned the DSP on and nothing comes out of the headphones, plus I get this
> in the terminal:
>
> snd_pcm_open (input): No such file or directory
> snd_pcm_open (output): Invalid argument
> snd_pcm_open (input): No such file or directory
> snd_pcm_open (output): Invalid argument
>
> More help?
>
>
> On Sat, Mar 22, 2014 at 9:58 PM, Roman Haefeli <reduzent at gmail.com> wrote:
>
>> On Sam, 2014-03-22 at 19:27 +0200, Alexandros Drymonitis wrote:
>> > Just installed Pd in my Udoo quad with sudo apt-get install puredata
>> > and all the necessary files appear to be where they should but when I
>> > type /usr/bin/puredata (or pd) I get the above message and then
>> > 'watchdog: signaling pd...' without anything else happening.
>>
>> Pd doesn't know where to display its GUI.
>>
>> > I'm logging in udoo with ssh. What do I need to do?
>>
>> Depends on what you want. You can use X11 forwarding (ssh -X) in order
>> to display Pd's windows on your local machine. Or you can run an X
>> session on your Udoo and connect to your Udoo with VNC.
>>
>> Roman
>>
>>
>>
>>
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>
>
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