https://bugs.kde.org/show_bug.cgi?id=403533

            Bug ID: 403533
           Summary: crash while attempting to configure a jog/shuttle
                    device
           Product: kdenlive
           Version: unspecified
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: User Interface
          Assignee: j...@kdenlive.org
          Reporter: s...@ecloud.org
  Target Milestone: ---

Application: kdenlive (18.12.0)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.16.11-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:

Settings | Configure KDEnlive
JogShuttle
check Enable Jog Shuttle device
Hit the reload 🔄 button
My X-Keys Editor shows up in the combobox
and crash, it dies without any further interaction

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2d2e625000 (LWP 21658))]

Thread 56 (Thread 0x7f2c775d2700 (LWP 25859)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d1a94450e in  () at /usr/lib/mlt/libmltsdl2.so
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 55 (Thread 0x7f2c8dd9d700 (LWP 25858)):
#0  0x00007f2d37ed442b in getpid () at /usr/lib/libc.so.6
#1  0x00007f2d2f633c70 in pa_detect_fork () at
/usr/lib/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f2d333067dc in pa_stream_writable_size () at /usr/lib/libpulse.so.0
#3  0x00007f2d201b3855 in  () at /usr/lib/libSDL2-2.0.so.0
#4  0x00007f2d2010b046 in  () at /usr/lib/libSDL2-2.0.so.0
#5  0x00007f2d20151f9f in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f2d201d56ea in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 54 (Thread 0x7f2ce806b700 (LWP 25857)):
#0  0x00007f2d37efbd16 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f2d332fda13 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#2  0x00007f2d332fdfe0 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#3  0x00007f2d332fe091 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#4  0x00007f2d201b39b0 in  () at /usr/lib/libSDL2-2.0.so.0
#5  0x00007f2d20151f9f in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f2d201d56ea in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 53 (Thread 0x7f2c77fef700 (LWP 25770)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 52 (Thread 0x7f2c787f0700 (LWP 25769)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 51 (Thread 0x7f2c78ff1700 (LWP 25768)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 50 (Thread 0x7f2c797f2700 (LWP 25767)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 49 (Thread 0x7f2c79ff3700 (LWP 25766)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 48 (Thread 0x7f2c7a7f4700 (LWP 25765)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 47 (Thread 0x7f2c7aff5700 (LWP 25764)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 46 (Thread 0x7f2c7b7f6700 (LWP 25763)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab339ec in  () at /usr/lib/libmlt.so.6
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 45 (Thread 0x7f2c7bff7700 (LWP 25762)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 44 (Thread 0x7f2c7c7f8700 (LWP 25761)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 43 (Thread 0x7f2c7cff9700 (LWP 25760)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 42 (Thread 0x7f2c7d7fa700 (LWP 25759)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 41 (Thread 0x7f2c7dffb700 (LWP 25758)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 40 (Thread 0x7f2c7e7fc700 (LWP 25757)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 39 (Thread 0x7f2c7effd700 (LWP 25756)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 38 (Thread 0x7f2c8e59e700 (LWP 25755)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3ab2abcc in  () at /usr/lib/libmlt.so.6
#2  0x000055e0ed38d48e in  ()
#3  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 37 (Thread 0x7f2c8d59c700 (LWP 25754)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d1a9450df in  () at /usr/lib/mlt/libmltsdl2.so
#2  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 36 (Thread 0x7f2c555ed700 (LWP 25474)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 35 (Thread 0x7f2c55dee700 (LWP 25473)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 34 (Thread 0x7f2c565ef700 (LWP 25472)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 33 (Thread 0x7f2c60ddd700 (LWP 25471)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 32 (Thread 0x7f2c615de700 (LWP 25470)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f2c61ddf700 (LWP 25469)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f2c625e0700 (LWP 25468)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f2c5d7fa700 (LWP 25060)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f2c5dffb700 (LWP 25059)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f2c5e7fc700 (LWP 25058)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f2c5effd700 (LWP 25057)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f2c5f7fe700 (LWP 25056)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f2c5ffff700 (LWP 25055)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f2c8cd9b700 (LWP 25054)):
#0  0x00007f2d3790e436 in do_futex_wait.constprop () at
/usr/lib/libpthread.so.0
#1  0x00007f2d3790e538 in __new_sem_wait_slow.constprop.0 () at
/usr/lib/libpthread.so.0
#2  0x00007f2d23c6d2c1 in  () at /usr/lib/libvpx.so.5
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f2c9e9ab700 (LWP 22442)):
#0  0x00007f2d335663b0 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f2d335b6fbe in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2d335b84e6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f2d385b35c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f2d383a05c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f2c9f1ac700 (LWP 22441)):
#0  0x00007f2d37ef77a4 in read () at /usr/lib/libc.so.6
#1  0x00007f2d33566971 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2d335b70b0 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2d335b84e6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f2d385b35c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f2d383a05c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f2c9f9ad700 (LWP 22440)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f2cc0e22700 (LWP 22437)):
#0  0x00007f2d37ef77a4 in read () at /usr/lib/libc.so.6
#1  0x00007f2d2f644782 in pa_read () at
/usr/lib/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f2d332fd55f in pa_mainloop_prepare () at /usr/lib/libpulse.so.0
#3  0x00007f2d332fdfd1 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f2d332fe091 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f2d3330c5ae in  () at /usr/lib/libpulse.so.0
#6  0x00007f2d2f6749fc in  () at /usr/lib/pulseaudio/libpulsecommon-12.2.so
#7  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f2cc27fc700 (LWP 22118)):
#0  0x00007f2d37efbc21 in poll () at /usr/lib/libc.so.6
#1  0x00007f2d335b8540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f2d385b35c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f2d383a05c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2d39294b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f2cc37fe700 (LWP 21864)):
#0  0x00007f2d335b6f6b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#1  0x00007f2d335b84e6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f2d385b35c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f2d383a05c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2d39294b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f2cc3fff700 (LWP 21862)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f2ce8ff9700 (LWP 21861)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f2ce97fa700 (LWP 21860)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f2ce9ffb700 (LWP 21859)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f2cea7fc700 (LWP 21858)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f2ceaffd700 (LWP 21857)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f2ceb7fe700 (LWP 21856)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f2cebfff700 (LWP 21855)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f2cf8edf700 (LWP 21854)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f2cf96e0700 (LWP 21853)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f2cf9ee1700 (LWP 21852)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f2cfa838700 (LWP 21851)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2cff22a004 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f2cff229d28 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f2d2af41700 (LWP 21661)):
#0  0x00007f2d37efbc21 in poll () at /usr/lib/libc.so.6
#1  0x00007f2d335b8540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f2d385b35c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f2d383a05c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2d39fa6ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f2d2c80a700 (LWP 21660)):
#0  0x00007f2d37efbc21 in poll () at /usr/lib/libc.so.6
#1  0x00007f2d330b6630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f2d330b82db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f2d2d75f96b in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f2d383a19cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f2d2e61e700 (LWP 21659)):
#0  0x00007f2d3790bafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f2d38209cd1 in __gthread_cond_wait (__mutex=<optimized out>,
__cond=<optimized out>) at
/build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f2d38209cd1 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized
out>, __lock=...) at
/build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f2d36c74f54 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f2d36c75079 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f2d38210063 in std::execute_native_thread_routine(void*)
(__p=0x55e0edb002e0) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007f2d37905a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f2d37f06b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f2d2e625000 (LWP 21658)):
[KCrash Handler]
#6  0x00007f2d39a6afce in QWidget::show() () at /usr/lib/libQt5Widgets.so.5
#7  0x000055e0ed2d20f3 in  ()
#8  0x000055e0ed2d2d5c in  ()
#9  0x00007f2d3858828c in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#10 0x00007f2d385944fc in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f2d38588b1b in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#12 0x00007f2d39a2de34 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#13 0x00007f2d39a35671 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#14 0x00007f2d3855d8f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#15 0x00007f2d385b2955 in QTimerInfoList::activateTimers() () at
/usr/lib/libQt5Core.so.5
#16 0x00007f2d385b321a in  () at /usr/lib/libQt5Core.so.5
#17 0x00007f2d335b6a2f in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#18 0x00007f2d335b85e9 in  () at /usr/lib/libglib-2.0.so.0
#19 0x00007f2d335b862e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#20 0x00007f2d385b35a9 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#21 0x00007f2d3855c58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#22 0x00007f2d38564896 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#23 0x000055e0ed0df338 in  ()
#24 0x00007f2d37e2f223 in __libc_start_main () at /usr/lib/libc.so.6
#25 0x000055e0ed0dfbce in _start ()
[Inferior 1 (process 21658) detached]

Report to https://bugs.kde.org/

---

The crash reporter continues to say "Sending crash report... (please wait)" for
more than an hour now so I'm submitting the bug here instead.

This X-Keys Editor is an early model (maybe 2003 or 2005 or so) with
mac-specific firmware, so not the same as one that you could buy now.  I should
figure out how to upgrade the firmware assuming that it's possible.  Still, it
shouldn't make kdenlive crash.

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