On 09/30/2016 04:13 AM, Zakis Korakios wrote:
>
> Hi,
>
> I have a Roland JDXi synth (no hardware problems, plays fine in
> Windows on different usb ports) which has 2 modes
>
>
> Vendor for Audio and midi
>
> Generic for midi only
>
>
> The problem is that when in Vendor mode, the JDXi locks when connected
> to usb ,until I connect it ,to Jack.
>
> Then it starts playing fine, but if I disconnect it from Jack it stops
> again.
>
This is a power management issue affecting lot of roland devices (See
earlier thread "Issues with a RolandGaia SH-01"). This will hopefully be
fixed in the future.
> When using an app like Ardour (on alsa mode) the JDXi plays only when
> is on playback or recording mode(no duplex)
>
>
Also this issue seems to affect lots of roland devices, unfortunately
the root cause is unknown. Are you getting "Unable to change format on
ep #84: already
in use" messages in your syslog?
Stefan
> Bellow is a link for the lsusb -v
>
>
> https://1drv.ms/u/s!AlZVbQKqWCqsgR88M2Ul-x_sTo29
> <https://1drv.ms/u/s%21AlZVbQKqWCqsgR88M2Ul-x_sTo29>
>
> alsactl version 1.1.2 (couldn't find the alsa version ,is this the
> correct one?)
>
> rt-kernel 4.4.6-rt13-avl2 (from AVLinux)
>
>
>
>
>
>
>
>
>
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>
>
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