[L2Ork-dev] Purr Data & Raspberry Pi 400?

Mon Nov 9 11:49:07 EST 2020

On Mon, Nov 9, 2020 at 3:27 PM Linux ROUEN Normandie <linux.rouen at free.fr>
wrote:

> Yes, it has by default a big passive radiator
> <https://cdn.arstechnica.net/wp-content/uploads/2020/11/PXL_20201102_161143562-1440x1009.jpg>
> (the size of the keyboard) on top of the ARM CPU.
>

Ok, I see. Looks like this is good enough to even run the cpu at a higher
default clock speed, so it should be fine. This was a problem that plagued
the original Pi4 which is why you see so many 3rd party cases with active
cooling solutions on the market; I have one of those as well.

Okay. I will need to check if the Raspberry Pi OS delivered with the rPi
> 400 is a 32 or 64-bit OS. Currently on the download page of the Foundation
> it's a 32-bit.
>

Yep, that's the official distribution, it used to be called Raspbian before.

In the meantime I'm learning that now Manjaro
> <https://manjaro.org/downloads/arm/raspberry-pi-4/arm8-raspberry-pi-4-kde-plasma/>
> (20.10) and Ubuntu Desktop <https://ubuntu.com/download/raspberry-pi>
> (20.10) are official versions for the rPi 4 / rPi 400, but both are only in
> 64-bit. So based on above they will not be compatible with the current Purr
> Data for rPi.
>

No, they won't. But the OBS has aarch64 build targets for both Manjaro and
Ubuntu. I'm not sure whether these will work, but if anyone is willing to
test them out, just let me know and I'll enable these targets.

Albert

> Based on my reading, it seems we need to blacklist the internal Audio for
>> being able to properly use the external one.
>>
>
> You don't have to do any of that. Just plug the USB device into the Pi,
> configure it as the ALSA (or Jack) audio I/O and you should be set. That
> way you can keep using the built-in soundcard for other purposes. If you
> disable the built-in soundcard then may run into trouble because Purr and
> other applications will fight over access to the device.
>
> Well noticed.
>
>
> I'm currently using either CSL-1
>> <https://www.amazon.fr/dp/B01BNQERRQ/ref=pe_3044141_185740131_TE_item>
>> or CSL-2
>> <https://www.amazon.fr/dp/B07MPBVRNF/ref=pe_3044141_185740131_TE_item>
>> when I need to have a second Audio device under GNU/Linux / ALSA / JACK2
>>
>
> Yeah, those will work fine, just as well as pretty much any of those cheap
> USB audio devices.
>
> Good luck, and let us know how Purr works on your Pi400 when you get it!
>
> I will do it.
> Thanks. Joseph
>
>
> Albert
>
>
> Now, I will need to wait at least 4-5 weeks before getting my Raspberry Pi
>> 400 Kit (AZERTY) as it's currently (already) in stock shortage.
>>
>> Best, Joseph
>> - - - - - - - - -
>>
>> Le 08/11/2020 à 23:50, Albert Graef a écrit :
>>
>> Hi Joseph,
>>
>> Last time I tested Purr on the Pi4, it worked fine there. That was quite
>> some time ago, though (probably around Purr 2.9/2.10), so you'll have to
>> give it a go yourself to see how well the latest version works there.
>>
>> The only issue I remember was with the rather lousy built-in soundcard of
>> the Pi4, which can be overcome with a cheap external USB audio device
>> (e.g.,
>> https://www.amazon.fr/UGREEN-Adaptateur-Compatible-Raspberry-Microphone/dp/B01N905VOY
>> is the one that I often use, but any half-decent USB sound device should do
>> the trick).
>>
>> Good luck!
>> Albert
>>
>>
>> On Fri, Nov 6, 2020 at 8:20 PM Linux ROUEN Normandie <linux.rouen at free.fr>
>> wrote:
>>
>>> Hello to the List,
>>>
>>> I'm looking for an additional, very affordable but enough powerful PC
>>> under GNU/Linux for CAM (computer-aided music), Programming, Home
>>> automation, etc.
>>>
>>> Currently my choice is going for the very new Raspberry Pi 400
>>> <https://www.raspberrypi.org/products/raspberry-pi-400/?resellerType=home>
>>> with Raspberry Pi OS, a Raspberry Pi 4 that has been integrated into a
>>> keyboard, with a complete kit priced at ~ 100 € here in Europe (106.50 €
>>> Tax incl. in France).
>>>
>>> Questions:
>>> - Has anyone tested Purr Data with the Raspberry Pi 4 (Debian or other
>>> distros)?
>>> - If yes, what was your experience, pros and cons?
>>>
>>> Thanks a lot.
>>> - - - - - - - - - - - - - - - - - - - -
>>> Best,
>>> Joseph Gastelais
>>> LINUX ♥ ROUEN ♥ Normandie <https://www.linuxrouen.fr/wp/>
>>> - - - - - - - - - - - - - - - - - - - -
>>> _______________________________________________
>>> L2Ork-dev mailing list
>>> L2Ork-dev at disis.music.vt.edu
>>> https://disis.music.vt.edu/listinfo/l2ork-dev
>>
>>
>>
>> --
>> Dr. Albert Gr"af
>> Computer Music Research Group, JGU Mainz, Germany
>> Email: aggraef at gmail.com, web: https://agraef.github.io/
>>
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>
>
>
> --
> Dr. Albert Gr"af
> Computer Music Research Group, JGU Mainz, Germany
> Email: aggraef at gmail.com, web: https://agraef.github.io/
>
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>
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-- 
Dr. Albert Gr"af
Computer Music Research Group, JGU Mainz, Germany
Email: aggraef at gmail.com, web: https://agraef.github.io/
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