[Galaxy S II Original Android Development] Mike_52:
Another Logcat more clear :

--------- beginning of /dev/log/system
W/InputManagerService( 2032): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@41882740
--------- beginning of /dev/log/main
D/dalvikvm( 2032): GC_EXPLICIT freed 1724K, 22% free 16936K/21447K, paused 20ms+12ms
D/dalvikvm( 9797): GC_CONCURRENT freed 412K, 7% free 10185K/10887K, paused 1ms+2ms
D/dalvikvm( 2379): GC_CONCURRENT freed 920K, 10% free 12203K/13511K, paused 4ms+4ms
E/OMXCodec( 1865): Attempting to allocate OMX node 'OMX.google.vorbis.decoder'
E/OMXCodec( 1865): Successfully allocated OMX node 'OMX.google.vorbis.decoder'
I/AudioService( 2032): AudioFocus requestAudioFocus() from android.media.AudioManager@415bb098
I/AudioPolicyManager( 1865): startOutput() output 1, stream 5, session 62
I/AudioPolicyManager( 1865): setStreamMute() stream 1, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): setStreamMute() stream 3, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): getDeviceForStrategy() strategy 2, device a
E/AudioHardwareYamaha( 1865): setHeadphoneVolume: Set Headset Analog Volume control(0)
V/yamaha::media::CManager( 1865): setHeadphoneVolume(volume=0)
I/AudioPolicyManager( 1865): setStreamMute() stream 9, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): setStreamMute() stream 10, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): setStreamMute() stream 12, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): setStreamMute() stream 13, mute 1, output 1, mMuteCount 0
I/AudioPolicyManager( 1865): setStreamMute() stream 14, mute 1, output 1, mMuteCount 0
D/dalvikvm(14605): GC_CONCURRENT freed 1934K, 33% free 9491K/14087K, paused 2ms+16ms
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 0
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 1
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 2
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 3
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 4
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 5
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 6
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 7
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 8
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 9
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 10
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 11
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 12
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 13
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 14
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 5
D/AudioSystem( 1865): isSeparatedStream: false
I/AudioHardwareYamaha( 1865): AudioHardware::setDevices(devices=0000000Ah, mask=00023FFFh)
V/yamaha::media::CManager( 1865): setDevices(devices=0000000Ah)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::createVolume()
D/yamaha::media::VolumeCtrl( 1865): Dir0 : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Dir0Att : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): DacMaster : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Hp : AP Playback Music HP (F801h)
D/yamaha::media::VolumeCtrl( 1865): HpGain : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Sp : AP Playback Music HP (FD81h)
V/yamaha::media::VolumeCtrl( 1865): Hp = 25 (FD01h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume()
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() FM Playback: Ready
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() VoiceCall: Ready
I/AudioService( 2032): AudioFocus abandonAudioFocus() from android.media.AudioManager@415bb098
I/AudioPolicyManager( 1865): stopOutput() output 1, stream 5, session 62
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 0
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 1
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 2
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 3
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 4
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 5
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 6
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 7
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 8
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 9
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 10
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 11
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 12
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 13
D/AudioSystem( 1865): isSeparatedStream: false
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 14
D/AudioSystem( 1865): isSeparatedStream: false
I/AudioPolicyManager( 1865): setStreamMute() stream 1, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): setStreamMute() stream 3, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): getDeviceForStrategy() strategy 0, device 8
I/AudioPolicyManager( 1865): setStreamMute() stream 9, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): setStreamMute() stream 10, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): setStreamMute() stream 12, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): getDeviceForStrategy() strategy 0, device 8
I/AudioPolicyManager( 1865): setStreamMute() stream 13, mute 0, output 1, mMuteCount 1
I/AudioPolicyManager( 1865): setStreamMute() stream 14, mute 0, output 1, mMuteCount 1
I/AudioHardwareYamaha( 1865): AudioHardware::setDevices(devices=00000008h, mask=00023FFFh)
V/yamaha::media::CManager( 1865): setDevices(devices=00000008h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::createVolume()
D/yamaha::media::VolumeCtrl( 1865): Dir0 : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Dir0Att : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): DacMaster : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Hp : AP Playback Music HP (F801h)
D/yamaha::media::VolumeCtrl( 1865): HpGain : AP Playback Music HP (0001h)
V/yamaha::media::VolumeCtrl( 1865): Hp = 25 (FD01h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume()
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() FM Playback: Ready
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() VoiceCall: Ready
E/AudioHardwareYamaha( 1865): setHeadphoneVolume: Set Headset Analog Volume control(14)
V/yamaha::media::CManager( 1865): setHeadphoneVolume(volume=14)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setAnalogVolume(id=1, volume=25)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::createVolume()
D/yamaha::media::VolumeCtrl( 1865): Dir0 : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Dir0Att : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): DacMaster : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Hp : AP Playback Music HP (F801h)
D/yamaha::media::VolumeCtrl( 1865): HpGain : AP Playback Music HP (0001h)
V/yamaha::media::VolumeCtrl( 1865): Hp = 25 (FD01h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume()
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() FM Playback: Ready
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() VoiceCall: Ready
E/AudioHardwareYamaha( 1865): setHeadphoneVolume: Set Headset Analog Volume control(1)
V/yamaha::media::CManager( 1865): setHeadphoneVolume(volume=1)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setAnalogVolume(id=1, volume=5)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::createVolume()
D/yamaha::media::VolumeCtrl( 1865): Dir0 : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Dir0Att : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): DacMaster : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Hp : AP Playback Music HP (F801h)
D/yamaha::media::VolumeCtrl( 1865): HpGain : AP Playback Music HP (0001h)
V/yamaha::media::VolumeCtrl( 1865): Hp = 5 (EC01h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume()
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() FM Playback: Ready
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() VoiceCall: Ready
W/InputManagerService( 2032): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@4183a730
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 3
D/AudioSystem( 1865): isSeparatedStream: false
I/AudioPolicyManager( 1865): getDeviceForStrategy() strategy 0, device 8
E/AudioHardwareYamaha( 1865): setHeadphoneVolume: Set Headset Analog Volume control(13)
V/yamaha::media::CManager( 1865): setHeadphoneVolume(volume=13)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setAnalogVolume(id=1, volume=19)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::createVolume()
D/yamaha::media::VolumeCtrl( 1865): Dir0 : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Dir0Att : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): DacMaster : AP Playback Music HP (0001h)
D/yamaha::media::VolumeCtrl( 1865): Hp : AP Playback Music HP (F801h)
D/yamaha::media::VolumeCtrl( 1865): HpGain : AP Playback Music HP (0001h)
V/yamaha::media::VolumeCtrl( 1865): Hp = 19 (FA01h)
V/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume()
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() FM Playback: Ready
D/yamaha::media::VolumeCtrl( 1865): VolumeCtrl::setVolume() VoiceCall: Ready
D/AudioSystem( 1865): android::AudioSystem::isSeparatedStream(audio_stream_type_t) called!
D/AudioSystem( 1865): audio_stream_type_t: 9
D/AudioSystem( 1865): isSeparatedStream: false

I hope it will help