Fedora 16 Gnome and KDE - problems with D-bus and Qt

Sun Mar 25 17:06:02 UTC 2012

 I recently installed KDE desktop. Kaffeine seems to run much smoother
in the KDE runtime environment.

When I start kaffeine in Gnome or KDE I get - QDBusConnection: session
D-Bus connection created before QCoreApplication. Application may
misbehave.

When I select a channel in kaffeine I get - No accelerated IMDCT
transform found. Not really a problem except that I occasionally lose
sound on a weaker channel.

My desktop env shows
QT_IM_MODULE=xim

Is case sensitivity an issue or should this be set to i-bus or
something else/newer in order for X to handle D-bus and Qt properly?

After a kernel upgrade to 3.3.0-4.fc16.i686 the KDE crash reporter
started working and I got this back trace in respect of the kmixer not
working.

Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb773fa80 (LWP 1750))]

Thread 2 (Thread 0xad0ffb40 (LWP 1770)):
#0  0x4bd73001 in __GI_clock_gettime (clock_id=1, tp=0xad0fef68) at
../sysdeps/unix/clock_gettime.c:116
#1  0x41a38e06 in do_gettime (frac=0xad0fef60, sec=0xad0fef58) at
tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x41b22bf7 in QTimerInfoList::updateCurrentTime (this=0xac701abc)
at kernel/qeventdispatcher_unix.cpp:343
#4  0x41b22f5b in QTimerInfoList::timerWait (this=0xac701abc, tm=...)
at kernel/qeventdispatcher_unix.cpp:450
#5  0x41b217a3 in timerSourcePrepareHelper (src=<optimized out>,
timeout=0xad0ff06c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x41b2183d in timerSourcePrepare (source=0xac701a88,
timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x4be43c4c in g_main_context_prepare (context=0xac700520,
priority=0xad0ff0c8) at gmain.c:2762
#8  0x4be44a08 in g_main_context_iterate (context=0xac700520, block=1,
dispatch=1, self=0xac700468) at gmain.c:3069
#9  0x4be4501f in g_main_context_iteration (context=0xac700520,
may_block=1) at gmain.c:3152
#10 0x41b22317 in QEventDispatcherGlib::processEvents
(this=0xac7004a8, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x41aee4ee in QEventLoop::processEvents (this=0xad0ff200,
flags=...) at kernel/qeventloop.cpp:149
#12 0x41aee799 in QEventLoop::exec (this=0xad0ff200, flags=...) at
kernel/qeventloop.cpp:204
#13 0x419d6b2c in QThread::exec (this=0x91016f0) at thread/qthread.cpp:501
#14 0x41acb35e in QInotifyFileSystemWatcherEngine::run
(this=0x91016f0) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x419da0b1 in QThreadPrivate::start (arg=0x91016f0) at
thread/qthread_unix.cpp:298
#16 0x4bd51cd3 in start_thread (arg=0xad0ffb40) at pthread_create.c:309
#17 0x4bc8ea2e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb773fa80 (LWP 1750)):
[KCrash Handler]
#7  0x42213ae6 in MDWSlider::update (this=0x90f6680) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/gui/mdwslider.cpp:1001
#8  0x4220f523 in ViewDockAreaPopup::refreshVolumeLevels
(this=0x90f5f68) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/gui/viewdockareapopup.cpp:168
#9  0x4220c113 in qt_static_metacall (_a=0xbff6dd70, _id=3,
_o=0x90f5f68, _c=<optimized out>) at
/usr/src/debug/kdemultimedia-4.8.1/i686-redhat-linux-gnu/kmix/viewbase.moc:64
#10 ViewBase::qt_static_metacall (_o=0x90f5f68,
_c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbff6dd70) at
/usr/src/debug/kdemultimedia-4.8.1/i686-redhat-linux-gnu/kmix/viewbase.moc:55
#11 0x41b04ea1 in QMetaObject::activate (sender=0x906c530,
m=0x4224fc28, local_signal_index=1, argv=0x0) at
kernel/qobject.cpp:3547
#12 0x4222f766 in Mixer::controlChanged (this=0x906c530) at
/usr/src/debug/kdemultimedia-4.8.1/i686-redhat-linux-gnu/kmix/mixer.moc:117
#13 0x41b04ea1 in QMetaObject::activate (sender=0x90ae268,
m=0x4224db24, local_signal_index=0, argv=0x0) at
kernel/qobject.cpp:3547
#14 0x421e4366 in Mixer_Backend::controlChanged (this=0x90ae268) at
/usr/src/debug/kdemultimedia-4.8.1/i686-redhat-linux-gnu/kmix/mixer_backend.moc:107
#15 0x421e4670 in Mixer_Backend::readSetFromHW (this=0x90ae268) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_backend.cpp:155
#16 0x421f147b in Mixer_PULSE::triggerUpdate (this=0x90ae268) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_pulse.cpp:1286
#17 0x421f7e15 in sink_cb (c=0x90b1160, i=0x0, eol=1) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_pulse.cpp:191
#18 0x44184c51 in context_get_sink_info_callback (pd=0x8f4b208,
command=2, tag=405, t=0x90cad20, userdata=0x90b2918) at
pulse/introspect.c:263
#19 0x4414123e in run_action (pd=0x8f4b208, r=0x90b2ca0, command=2,
ts=0x90cad20) at pulsecore/pdispatch.c:274
#20 0x44141640 in pa_pdispatch_run (pd=0x8f4b208, packet=0x918e920,
creds=0x90805b0, userdata=0x90b1160) at pulsecore/pdispatch.c:326
#21 0x4417c87e in pstream_packet_callback (p=0x90804e8,
packet=0x918e920, creds=0x90805b0, userdata=0x90b1160) at
pulse/context.c:346
#22 0x44146ca3 in do_read (p=0x90804e8) at pulsecore/pstream.c:816
#23 do_something (p=0x90804e8) at pulsecore/pstream.c:184
#24 0x44130fe3 in callback (m=0x90b3014, e=0x90dfe00, fd=11,
f=PA_IO_EVENT_INPUT, userdata=0x8fea9b0) at pulsecore/iochannel.c:119
#25 0x424dcb7a in dispatch_func (source=0x90b2fe0, callback=0,
userdata=0x0) at pulse/glib-mainloop.c:585
#26 0x4be4462f in g_main_dispatch (context=0x8e9a470) at gmain.c:2441
#27 g_main_context_dispatch (context=0x8e9a470) at gmain.c:3011
#28 0x4be44d70 in g_main_context_iterate (context=0x8e9a470,
block=1273313296, dispatch=1, self=0x8e9a678) at gmain.c:3089
#29 0x4be4501f in g_main_context_iteration (context=0x8e9a470,
may_block=1) at gmain.c:3152
#30 0x41b222b8 in QEventDispatcherGlib::processEvents (this=0x8e6e740,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#31 0x43055a9b in QGuiEventDispatcherGlib::processEvents
(this=0x8e6e740, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#32 0x41aee4ee in QEventLoop::processEvents (this=0xbff6e8a4,
flags=...) at kernel/qeventloop.cpp:149
#33 0x41aee799 in QEventLoop::exec (this=0xbff6e8a4, flags=...) at
kernel/qeventloop.cpp:204
#34 0x41af393b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#35 0x42f9ef35 in QApplication::exec () at kernel/qapplication.cpp:3811
#36 0x421fdeb3 in kdemain (argc=3, argv=0xbff6eb04) at
/usr/src/debug/kdemultimedia-4.8.1/kmix/apps/main.cpp:76
#37 0x0804861c in main (argc=3, argv=0xbff6eb04) at
/usr/src/debug/kdemultimedia-4.8.1/i686-redhat-linux-gnu/kmix/kmix_dummy.cpp:3

Oddly enough I can't start selinux troubleshooter from the desktop
icon, however it does occasionally pop up with an error.

It popped up and suggested this
grep colord /var/log/audit/audit.log | audit2allow -M mypol

semodule -i mypol.pp

Which I ran and kmix which wasn't able to run on the desktop does run,
selinux however does not.

Any suggestions in aid of a solution appreciated.
Russell
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