Hello,

Updating this thread about Olimex's OlinuXino board (A20-LIME & A20-LIME2)
I still get the following error (in fact the console gets filled with dozens of them in a few seconds) :

"ALSA output error (restart failed): Broken pipe"

And the all DSP gets "stuck", it is not computed anymore (i.e. [env~] doesn't output anymore). I tried to make an abstraction to detect that dsp isn't "active" and restart it (";pd dsp 0", then ";pd dsp 1" -- the DSP button stays ticked).

This error appears at every startup of pd, and then randomly, I think mostly when opening new patcher window or on CPU load peaks. In general, pd's gui is quite slow (maybe normal on such board), and - don't know if this is related - sometimes Xorg crashes (I'm using the precooked debian distribution by Olimex)

I remember to read on this list that Raspberry Pi users should use a patched version of vanilla for ARM processors, isn't it ? (And Julian also adviced me to avoid pd-extended)

I think I'll give a try, but is there a little step-by-step "howto" to learn how to install this version on a debian ?

Any help much appreciated !

cheers,

Raphaël


2015-05-22 12:44 GMT+02:00 Winfried Ritsch <ritsch@iem.at>:

just to add my experience.

 

I am now running some Olimex A10-Lime with amplifier boards on a sound installation and it works quite stable.

 

Test-board see:

 

http://puredata.info/docs/embedded/olinuxino/algo_a10board_05_cut.jpg/view

 

I compiled jackd myself excluding dbus service so it worked, but did not get

a better performance so I use pd with ALSA directly.

 

mfg

winfried

 

 

Am Mittwoch, 13. Mai 2015, 14:56:28 schrieb Raphaël Ilias:

> Hi !

>

> Just to inform you that I'm currently experimenting with Olimex's

> development boards, this might interest some people here (i am not doing

> any advertising at all) who are into "mobile puredata"

>

> the set-up i use consists of

> - Olimex's A20-OLinuXino-LIME board (dual core Cortex-A7)

> - with their own Debian distribution

> - cheap USB audio interface : "Terratec Aureon Dual USB"

> - pd-extended 0.43-4

> - patching through VNC (and through Wi-Fi)

>

> And it works.

> ..not as fast as on my laptop, of course, but I can run patches ok.

> yet, the GUI is indeed quite slow (especially opening a patch)

>

> However, I have a few troubles, but it might not be the right place to

> ask...

> I am newbie to debian, so I couldn't setup jack at all. I'm using alsa but

> I get the error at startup :

> "ALSA output error (restart failed): Broken pipe"

> (and also sometimes when opening patche, I get a bunch of these and DSP get

> stuck, i need to turn OFF and ON again pd's DSP to get audio back.)

>

> Searching the archive, I saw that some people got the same problem and

> resolved it by suspending/de-installing pulseaudio.

> But it seems that pulseaudio isn't installed here.

> Maybe someone has got a clue, where to search...? (i know this is very

> specific problem !)

>

> all best,

>

> Raphaël

 

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Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing.

Institut 17 Elektronische Musik und Akustik

8010 Graz, Inffeldgasse 10/III

E-Mail ritsch@iem.at

Homepage http://iem.at/ritsch

Mobil ++436642439369

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