# 5 Midi devices connected, only one is working

**URL:** <https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016>\
**Category:** Using Zynthian\
**Created:** [June 4, 2019, 4:33pm UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016 "2019-06-04T16:33:27Z")\
**Posts on this page:** 7\
**Page:** 2

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**Author:** ![Djihatch](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e480ec/32.png) [@Djihatch](https://discourse.zynthian.org/u/Djihatch)\
**Post date:** [June 7, 2019, 5:58am UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/21 "2019-06-07T05:58:23Z")

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And it stopped working or is it just a warning meesage ?

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**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [June 7, 2019, 6:38am UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/22 "2019-06-07T06:38:17Z")

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That’s the reason why it stopped. The period must just have ended. The next release should have 6.4.1, right @jofemodo?  
6.5 doesn’t seem to work very well.  
If they/we can’t fix it, they should provide us an unlimited demo version.

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**Author:** ![Djihatch](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e480ec/32.png) [@Djihatch](https://discourse.zynthian.org/u/Djihatch)\
**Post date:** [June 7, 2019, 2:04pm UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/23 "2019-06-07T14:04:04Z")

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Do I/We have to report the issue somewhere ?

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**Author:** ![wyleu](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/wyleu/32/514_2.png) [@wyleu](https://discourse.zynthian.org/u/wyleu)\
**Post date:** [June 8, 2019, 9:10am UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/24 "2019-06-08T09:10:07Z")

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> [@riban](#):
>
> (No audio - no Zynthian.)

Shouldn’t this be something we cater for with remote osc/MIDI control?  
A remote zynthian device that expects to speak to a rendering engine elsewhere?

It would, at least, provide a robust back stop, but might need displaying in status to declare an interface as remote.  
There is also the possibility of a remotely equipped device with MIDI and no audio. That will require some jack element at least.

Grubby stuff, this but probably worth a ticket.

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**Author:** ![riban](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/riban/32/2331_2.png) [@riban](https://discourse.zynthian.org/u/riban)\
**Post date:** [June 8, 2019, 1:19pm UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/25 "2019-06-08T13:19:09Z")

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[This issue](https://github.com/zynthian/zynthian-sys/issues/81) tracks the issue with Jack and includes a suggestion that we handle lack of PCM (audio) interface however Jack requires a PCM clock so I don’t think we can use Jack MIDI without it. For other projects I have avoided using Jack for MIDI. It doesn’t offer many advantages and has drawbacks. If we want to support an _audioless_ Zynthian then maybe MIDI should be handled at ALSA level.  
There may be a way to start Jack with a dummy PCM clock, I haven’t looked far but maybe something like [Dummy ALSA](https://alsa-project.org/wiki/Matrix:Module-dummy).

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**Author:** ![riban](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/riban/32/2331_2.png) [@riban](https://discourse.zynthian.org/u/riban)\
**Post date:** [June 8, 2019, 3:09pm UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/26 "2019-06-08T15:09:49Z")

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Please raise an issue for the Pianoteq issue [here](https://github.com/zynthian/zynthian-issue-tracking/issues/new?template=bug_report.md). It is a different topic to the issue being discussed here.

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**Author:** ![Djihatch](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e480ec/32.png) [@Djihatch](https://discourse.zynthian.org/u/Djihatch)\
**Post date:** [June 8, 2019, 3:14pm UTC](https://discourse.zynthian.org/t/5-midi-devices-connected-only-one-is-working/3016/27 "2019-06-08T15:14:39Z")

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Thank you ! That’s kind to you.

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