Application: systemsettings5 (5.17.0)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-18-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
Changing font dpi crashes system settings. I tried forcing a font dpi in fonts on 5.17 and it just crashed.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcb80729800 (LWP 29335))]

Thread 24 (Thread 0x7fcada4df700 (LWP 29871)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5619b22b5a68) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5619b22b5a18, cond=0x5619b22b5a40) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x5619b22b5a40, mutex=0x5619b22b5a18) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fcae7fff700 (LWP 29698)):
#0  0x00007fcb7cfd658d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcb7cfd7bac in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd938f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7cfd99e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcae5fab01c in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fcaf57f4700 (LWP 29644)):
#0  0x00007fcaf58c31f4 in pa_pstream_unref () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#1  0x00007fcaf58c373a in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#2  0x00007fcaf58c3fca in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#3  0x00007fcaf5926b93 in pa_mainloop_dispatch () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fcaf5926ec2 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fcaf5926f60 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fcaf593510d in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007fcaf58d337c in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fcaf686f700 (LWP 29501)):
#0  0x00007fcb7ed1dc2f in __GI___poll (fds=0x5619a92455e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcb7cfd9a3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd9dc3 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb223b359a in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fcb7d003111 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fcb231f7700 (LWP 29500)):
#0  0x00007fcb7ed192ac in __GI___libc_read (nbytes=16, buf=0x7fcb231f6ce0, fd=35) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fcb7ed192ac in __GI___libc_read (fd=35, buf=0x7fcb231f6ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fcb7d02163f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7cfd958e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcb7cfd99e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fcb7cfd9bc1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fcb7d003111 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fcaf84c3700 (LWP 29378)):
#0  0x00007fcb7ed1dc2f in __GI___poll (fds=0x7fcaf00025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcb7cfd9a3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7e383319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fcb23fff700 (LWP 29358)):
#0  0x00007fcb7d025c68 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcb7cfd9469 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd99e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcb7e383319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fcb31da6700 (LWP 29357)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ffb3fe8) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ffb3f98, cond=0x56199ffb3fc0) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ffb3fc0, mutex=0x56199ffb3f98) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fcb327cb700 (LWP 29356)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199fd80cd8) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199fd80c88, cond=0x56199fd80cb0) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199fd80cb0, mutex=0x56199fd80c88) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fcb33086700 (LWP 29355)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199f7d6db8) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199f7d6d68, cond=0x56199f7d6d90) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199f7d6d90, mutex=0x56199f7d6d68) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fcb33887700 (LWP 29354)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199f6bd288) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199f6bd238, cond=0x56199f6bd260) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199f6bd260, mutex=0x56199f6bd238) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fcb56389700 (LWP 29353)):
#0  0x00007fcb7cfd8e20 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcb7cfd996b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7e383319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fcb577fe700 (LWP 29350)):
#0  0x00007fcb7d025c3d in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcb7cfd9940 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7e383319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fcb57fff700 (LWP 29347)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a844) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a7f0, cond=0x56199ef0a818) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a818, mutex=0x56199ef0a7f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fcb64df9700 (LWP 29346)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a844) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a7f0, cond=0x56199ef0a818) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a818, mutex=0x56199ef0a7f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fcb655fa700 (LWP 29345)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a844) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a7f0, cond=0x56199ef0a818) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a818, mutex=0x56199ef0a7f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fcb65dfb700 (LWP 29344)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a140) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a0f0, cond=0x56199ef0a118) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a118, mutex=0x56199ef0a0f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fcb665fc700 (LWP 29343)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a140) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a0f0, cond=0x56199ef0a118) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a118, mutex=0x56199ef0a0f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fcb66dfd700 (LWP 29342)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a140) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a0f0, cond=0x56199ef0a118) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a118, mutex=0x56199ef0a0f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fcb675fe700 (LWP 29341)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199ef0a144) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199ef0a0f0, cond=0x56199ef0a118) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199ef0a118, mutex=0x56199ef0a0f0) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fcb67dff700 (LWP 29340)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199edaf758) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199edaf708, cond=0x56199edaf730) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199edaf730, mutex=0x56199edaf708) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fcb70a37700 (LWP 29339)):
#0  0x00007fcb7d8a02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56199edde4e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fcb7d8a02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56199edde490, cond=0x56199edde4b8) at pthread_cond_wait.c:508
#2  0x00007fcb7d8a02c6 in __pthread_cond_wait (cond=0x56199edde4b8, mutex=0x56199edde490) at pthread_cond_wait.c:638
#3  0x00007fcb713784bb in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fcb713780db in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fcb738cf700 (LWP 29338)):
#0  0x00007fcb7ed1dc2f in __GI___poll (fds=0x7fcb6c012d90, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcb7cfd9a3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcb7f2cd6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcb7f0ada75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcb7f54fefa in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fcb7f0aecc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcb7d899669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fcb7ed2a323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fcb80729800 (LWP 29335)):
[KCrash Handler]
#6  0x00007fcb7f704afc in QWindow::isActive() const () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#7  0x00007fcb563b5ba3 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kirigami/org.kde.desktop.so
#8  0x00007fcb7f2a15c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcb563b8324 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kirigami/org.kde.desktop.so
#10 0x00007fcb7f2a15c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fcb7f6f2c29 in QGuiApplication::paletteChanged(QPalette const&) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007fcb7f6f93c6 in QGuiApplicationPrivate::notifyThemeChanged() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fcb7fd3757d in QApplicationPrivate::notifyThemeChanged() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fcb7f6f8e74 in QGuiApplicationPrivate::processThemeChanged(QWindowSystemInterfacePrivate::ThemeChangeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007fcb7f70050b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007fcb7f6da26b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#17 0x00007fcb7a74928e in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#18 0x00007fcb7cfd984d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fcb7cfd9ad0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fcb7cfd9b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fcb7f2cd6a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fcb7f27463b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fcb7f27c3a6 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x000056199e18481e in  ()
#25 0x00007fcb7ec2f1e3 in __libc_start_main (main=0x56199e184420, argc=1, argv=0x7ffe057dc0f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe057dc0e8) at ../csu/libc-start.c:308
#26 0x000056199e1848ae in _start ()
[Inferior 1 (process 29335) detached]

The reporter indicates this bug may be a duplicate of or related to bug 412692.

Possible duplicates by query: bug 413083, bug 413024, bug 413012, bug 412997, bug 412918.

Reported using DrKonqi