In addition, see #8: someone with a 1000Hz kernel has the same problem. There's something else mysterious going on here. I just wish one of our devs had the problem. raskolnikov (or anyone affected by this): are you gather some profiling data for us? We would need you to build Mixxx from source with profiling=1, run it, try to use the MIDI controller for about a minute, then close Mixxx. Then run gprof ./mixxx and attach the output to this bug.
In addition, see #8: someone with a 1000Hz kernel has the same problem. There's something else mysterious going on here. I just wish one of our devs had the problem. raskolnikov (or anyone affected by this): are you gather some profiling data for us? We would need you to build Mixxx from source with profiling=1, run it, try to use the MIDI controller for about a minute, then close Mixxx. Then run gprof ./mixxx and attach the output to this bug.