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IDProjectCategoryView StatusLast Update
0008705ardourbugspublic2021-05-13 22:21
Reporteruser4336Assigned To 
Status newResolutionopen 
PlatformRedhatOSLinuxOS Version(any)
Product Version6.6 
Summary0008705: Ardour 6.6.0 randomly dropping MIDI off notes / sustaining MIDI notes.
DescriptionArdour 6.6.0 randomly doesn't turn a MIDI note off / sustains it indefinitely, while playing with live MIDI input (Axiom Pro Keyboard).

Using realtime Linux MAO kernel (5.11.4-rt11.fc34.x86_64 0000001 SMP PREEMPT_RT x86_64) with fresh, fully updated Fedora 34 install.
This also happens using latest non-realtime / vanilla kernel.

Using Pipewire with 512 buffer size - no xruns occurring.

It happens while playing live on two different midi keyboard inputs and using USB input and MIDI port input.

Ardour loaded with default.sf2 soundfont using both Calf fluidsynth and ACE Fluid Synth.

Steps To ReproduceOpen Ardour
Create MIDI track or bus
Set input to MIDI keyboard
Load Calf Fluidsynth
Load /usr/share/soundfonts/default.sf2 -> FluidR3_GM.sf2
Play live keyboard for about 2-3 minutes.
Additional InformationOperating System: Fedora 34
KDE Frameworks Version: 5.81.0
Qt Version: 5.15.2
Kernel Version: 5.11.4-rt11.fc34.x86_64
OS Type: 64-bit
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-4460 CPU @ 3.20GHz
Memory: 3.7 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4600


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Issue History

Date Modified Username Field Change
2021-05-13 22:21 user4336 New Issue
2021-05-13 22:21 user4336 Tag Attached: Midi