I'm running Mixx on ubuntu 11.10 on an intel celeron 2.5 ghz Mix crashes when I load a track. Below is what happens. :~$ /usr/bin/mixxx results in Debug: [Main]: Mixxx 1.10.0 "(built on: Dec 25 2011 @ 04:49:42; flags: hifieq mad midiscript optimize=9 qdebug shoutcast verbose vinylcontrol)" is starting... Debug: [Main]: Qt version is: 4.7.4 Debug: [Main]: Configuration file is at the current version 1.10.0 Debug: [Main]: Loading translations for locale "en_US" from translations folder "/usr/share/mixxx/translations/" : fail Debug: [Main]: Found folder 'Mixxx' within default OS music directory Debug: [Main]: Could not create folder 'Recordings' within 'Mixxx' Debug: [Main]: ControlObject::getControl returning NULL for ( "[Channel1]" , "vinylcontrol_mode" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Channel2]" , "vinylcontrol_mode" ) Debug: [Main]: JACK client name set ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition 'cards.ICH4.pcm.surround71.0:CARD=0' ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM surround71 ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (MIXER,'IEC958 Playback Default',0,0,0): No such file or directory ALSA lib setup.c:565:(add_elem) Cannot obtain info for CTL elem (MIXER,'IEC958 Playback Default',0,0,0): No such file or directory ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream Debug: [Main]: Available QtSQL drivers: ("QSQLITE", "QMYSQL3", "QMYSQL") Debug: [Main]: src/library/trackcollection.cpp DB status: true Debug: [Main]: SchemaManager::upgradeToSchemaVersion already at version 13 Debug: [Main]: TrackDAO::initialize QThread(0xa0885d0, name = "Main") "qt_sql_default_connection" Debug: [Main]: CrateDAO::initialize() Debug: [Main]: CueDAO::initialize QThread(0xa0885d0, name = "Main") "qt_sql_default_connection" Debug: [Main]: Promo dir: "/usr/share/mixxx//promo/1.8.0/index.html" Debug: [Main]: Traktor Library Location=[ "/home/bachola/collection.nml" ] Debug: [Main]: ControlObject::getControl returning NULL for ( "[Flanger]" , "lfoDepth" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Flanger]" , "lfoDelay" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Flanger]" , "lfoPeriod" ) Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: CachingReader using 4980736 bytes. Debug: [Main]: Constructed LibraryScanner Debug: [Main]: iTunes Album Art path is: "" Debug: [Main]: MidiDeviceManager::getDeviceList Debug: [Main]: Scanning PortMIDI devices: Debug: [Main]: Found output device # 0 Midi Through Port-0 Debug: [Main]: Found input device # 1 Midi Through Port-0 Debug: [Main]: Linking to output device # 0 "Midi Through Port-0" Debug: [Main]: Starting script engine with output device "" Debug: [MidiScriptEngine 1]: MIDI Device in script engine is: "" Debug: [Main]: MidiDeviceManager: Setting up devices Debug: [Main]: PortMIDI device "1. Midi Through Port-0" already closed Debug: [Main]: MidiMapping: Loading MIDI preset from "/home/bachola/.mixxx/midi/Midi_Through_Port-0.midi.xml" Debug: [Main]: Could not open xml file: "/home/bachola/.mixxx/midi/Midi_Through_Port-0.midi.xml" Debug: [Main]: Promo dir: "/usr/share/mixxx//promo/1.8.0/index.html" Debug: [Main]: loadSettings: 1 0 "" Debug: [Main]: slotApply crossfader: 1 "" Debug: [Main]: BpmSchemes::readXML "/home/bachola/.mixxx/mixxxbpmscheme.xml" Debug: [Main]: MidiDeviceManager::getDeviceList Debug: [Main]: MidiDeviceManager::getDeviceList Debug: [Main]: SoundManager::setupDevices() Debug: [Main]: SoundDevicePortAudio::open() "0, Intel ICH5: Intel ICH5 (hw:0,0)" Debug: [Main]: framesPerBuffer: 1024 Debug: [Main]: Requested sample rate: 44100 Hz, latency: 23.22 ms Debug: [Main]: Output channels: 2 | Input channels: 0 Debug: [Main]: Opening stream with id 0 Debug: [Main]: Opened PortAudio stream successfully... starting Debug: [Main]: Dynamically loaded PortAudio library Debug: [Main]: PortAudio: Started stream successfully Debug: [Main]: Actual sample rate: 44100 Hz, latency: 46.4399 ms Debug: [Main]: Using "Intel ICH5: Intel ICH5 (hw:0,0)" as output sound device clock reference Debug: [Main]: 1 output sound devices opened Debug: [Main]: 0 input sound devices opened Debug: [Main]: ControlObject::getControl returning NULL for ( "[Samplers]" , "show_samplers" ) Warning: [Main]: Requested control does not exist: "[Samplers],show_samplers" . Creating it. Debug: [Main]: Making property binder for "visible" Warning: [Main]: Object::connect: No such slot QGroupBox::setProperty(const char*, const QVariant&) in src/skin/propertybinder.cpp:13 Debug: [Main]: ControlObject::getControl returning NULL for ( "[Sampler1]" , "hotcue_38_position" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Sampler2]" , "hotcue_38_position" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Sampler3]" , "hotcue_38_position" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Sampler4]" , "hotcue_38_position" ) Debug: [Main]: BaseTrackCache(0xa257128) updateIndexWithQuery took 2 ms Debug: [Main]: PlaylistTableModel(0xa8fdbe8) select() took 5 ms Debug: [Main]: PrepareLibraryTableModel(0xa99dcd8) select() took 3 ms Debug: [Main]: PrepareLibraryTableModel(0xa99dcd8) select() took 5 ms Debug: [Main]: PrepareLibraryTableModel(0xa99dcd8) select() took 3 ms Debug: [Main]: DlgPrepare(0xa9629a8, name = "DlgPrepare") analysisActive false Debug: [Main]: MixxxLibraryFeature::activate() Debug: [Main]: LibraryTableModel(0xa257370) select() took 2 ms Debug: [Main]: WSearchLineEdit::restoreSearch( "" ) Debug: [Main]: ControlObject::getControl returning NULL for ( "[Vinylcontrol]" , "show_vinylcontrol" ) Warning: [Main]: Requested control does not exist: "[Vinylcontrol],show_vinylcontrol" . Creating it. Debug: [Main]: Making property binder for "visible" Warning: [Main]: Object::connect: No such slot QGroupBox::setProperty(const char*, const QVariant&) in src/skin/propertybinder.cpp:13 Debug: [Main]: ControlObject::getControl returning NULL for ( "[Microphone]" , "show_microphone" ) Warning: [Main]: Requested control does not exist: "[Microphone],show_microphone" . Creating it. Debug: [Main]: Making property binder for "visible" Warning: [Main]: Object::connect: No such slot QGroupBox::setProperty(const char*, const QVariant&) in src/skin/propertybinder.cpp:13 Warning: [Main]: QGLContext::makeCurrent(): Cannot make invalid context current. Debug: [Main]: createWaveformViewer() Debug: [Main]: WaveformViewerFactory :: Creating new visual waveform Debug: [Main]: WaveformViewerFactory :: Making new GL context. Debug: [Main]: ControlObject::getControl returning NULL for ( "[Spinny1]" , "show_spinny" ) Warning: [Main]: Requested control does not exist: "[Spinny1],show_spinny" . Creating it. Debug: [Main]: Making property binder for "visible" Warning: [Main]: Object::connect: No such slot QGroupBox::setProperty(const char*, const QVariant&) in src/skin/propertybinder.cpp:13 Debug: [Main]: ControlObject::getControl returning NULL for ( "[Channel1]" , "hotcue_38_position" ) Debug: [Main]: createWaveformViewer() Debug: [Main]: WaveformViewerFactory :: Creating new visual waveform Debug: [Main]: WaveformViewerFactory :: Sharing existing GL context. Debug: [Main]: ControlObject::getControl returning NULL for ( "[Spinny2]" , "show_spinny" ) Warning: [Main]: Requested control does not exist: "[Spinny2],show_spinny" . Creating it. Debug: [Main]: Making property binder for "visible" Warning: [Main]: Object::connect: No such slot QGroupBox::setProperty(const char*, const QVariant&) in src/skin/propertybinder.cpp:13 Debug: [Main]: ControlObject::getControl returning NULL for ( "[Channel2]" , "hotcue_38_position" ) Debug: [Main]: Displaying mixxx Debug: [Main]: Running Mixxx Debug: [Main]: BeatFactory::loadBeatsFromByteArray could not parse serialized beats. Segmentation fault :~$