Version:           3.5 (using KDE 4.2.0)
OS:                Linux
Installed from:    Unspecified Linux

When kmix is running and I plugin my usb-headset then it crashes. This is only happening with my usb-headset. When I start Kmix again everything is ok. The headset is there I can change the volume. This is what I got from crash handler:

Application: KMix (kmix), signal SIGABRT
0x00007f7643b66fd0 in __nanosleep_nocancel () from /lib/libc.so.6

Thread 1 (Thread 0x7f76474c0750 (LWP 7442)):
[KCrash Handler]
#5  0x00007f7643afa0c5 in raise () from /lib/libc.so.6
#6  0x00007f7643afb5e3 in abort () from /lib/libc.so.6
#7  0x00007f76459cb0a5 in qt_message_output () from /usr/lib/libQtCore.so.4
#8  0x00007f76459cb1c7 in qFatal () from /usr/lib/libQtCore.so.4
#9  0x00007f7646a9510b in Solid::DeviceManagerPrivate::_k_deviceAdded () from /usr/lib/libsolid.so.4
#10 0x00007f7646a95437 in Solid::DeviceManagerPrivate::qt_metacall () from /usr/lib/libsolid.so.4
#11 0x00007f7645ab4d30 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#12 0x00007f7646aa4b42 in Solid::Ifaces::DeviceManager::deviceAdded () from /usr/lib/libsolid.so.4
#13 0x00007f7646ac848c in Solid::Backends::Hal::HalManager::qt_metacall () from /usr/lib/libsolid.so.4
#14 0x00007f7645d8a283 in ?? () from /usr/lib/libQtDBus.so.4
#15 0x00007f7645d9036f in ?? () from /usr/lib/libQtDBus.so.4
#16 0x00007f7645ab0fde in QObject::event () from /usr/lib/libQtCore.so.4
#17 0x00007f7644c7a4ed in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#18 0x00007f7644c8087a in QApplication::notify () from /usr/lib/libQtGui.so.4
#19 0x00007f764667056b in KApplication::notify () from /usr/lib/libkdeui.so.5
#20 0x00007f7645aa3401 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#21 0x00007f7645aa3dc7 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#22 0x00007f7645ac7c33 in ?? () from /usr/lib/libQtCore.so.4
#23 0x00007f7640d74aa2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007f7640d7821d in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#25 0x00007f7640d783db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007f7645ac78cf in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#27 0x00007f7644cfb04f in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007f7645aa1d72 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#29 0x00007f7645aa1f05 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#30 0x00007f7645aa4065 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#31 0x00007f76471b46ba in kdemain () from /usr/lib/libkdeinit4_kmix.so
#32 0x00007f7643ae6546 in __libc_start_main () from /lib/libc.so.6
#33 0x0000000000400759 in _start ()