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IDProjectCategoryView StatusLast Update
0010421ardourbugspublic2026-06-28 20:19
ReporterLaurentM Assigned To 
PriorityhighSeveritycrashReproducibilityalways
Status newResolutionopen 
PlatformDebian GNUOSLinuxOS Version(any)
Product Version9.7 
Summary0010421: trying to access the Control Protocol Settings from usb connected Shuttlepro2, causes Ardour to crash.
DescriptionWhen clicking on the shuttle pro checkbox trying to enable the settings, the sound stops and ardour crashes.
It’s not possible to adjust the shuttle pro2’s settings inside ardours active surfaces.
Steps To Reproduce* Open Ardour ( 9.7 ) > edit > preferences > control surfaces > Contour Design.
* Although the shuttle pro2 is connected and functioning the checkbox is empty.
* clicking the shutle pro2 checkbox ( trying to have access to the control protocol settings ) causes Ardour to crash.
Additional Information* it's not possible to access the control protocol settings with a shuttlepro2 connected.
* when I unplug the shuttle pro2 form usb, strangely I can click the checkbox and have access to the control protocol settings.

Forum discussion :
https://discourse.ardour.org/t/custom-midi-controller-not-showing-up-on-controller-list/113369/82
TagsNo tags attached.

Activities

LaurentM

2026-06-28 10:16

reporter  

ShuttlePro2-Select-crash.png (42,256 bytes)   
ShuttlePro2-Select-crash.png (42,256 bytes)   

LaurentM

2026-06-28 20:19

reporter   ~0030564

I did several tests following your steps, with consistent ( the same ) result each time.

1. unplug shuttle pro2 ( this should be nessesairy, but for testing I happy to do so )
2. start ardour ( 9.7.90 )
3. edit > prefs > control surfaces
4 & 5. I can click the shuttlepro2 checkbox and access the control protocol settings window, via the active surfaces settings button, as often as I want, without Ardour crashing, so far so good.
6. When now pluging in the shuttlepro2, it isnt recognized.
In the control protocol settings window : device not working, no such device ( it may have been disconnected ).

Now comes the weird, unexpected but consistent step :
If I click on the still checked shuttlepro2 checkbox to first uncheck it, and again click it to check it, the shuttle pro is found and working like it should !
Again so far so good.

It's possible to to this 1 time, if I again ( with the shuttle pro2 still connected ) deactivate the checkbox, ardour still fine, but as soon as I click TO ACTIVATE the shuttlepro2 a SECOND time, Ardour crashes.

I did repeat this process several times, each time with the result as described above.
I'm hoping you, Paul or someone else can use this detailed info to troubleshoot whats going on.

Issue History

Date Modified Username Field Change
2026-06-28 10:16 LaurentM New Issue
2026-06-28 10:16 LaurentM File Added: ShuttlePro2-Select-crash.png
2026-06-28 20:19 LaurentM Note Added: 0030564