[Galaxy S I9000 Q&A, Help & Troubleshooting] FlyD4wn:
Thanks for the advice, this is what I found

(First I just wed till the screen *should* go off, after that I pressed power button)

02-25 19:17:39.336 V/InputDevice(3085): ID[0]=0(0) Up(1=>0)
02-25 19:17:39.338 V/WindowManager(3085): Dsptch > Window{48b92eb0 com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:17:39.348 E/AudioTrack(3085): getAudioMode[0]
02-25 19:17:42.338 W/PowerManagerService(3085): Timer 0x3->0x3|0x3
02-25 19:17:42.516 I/AudioHardwareALSA(2761): Output standby called!!. Turn off PCM device.
02-25 19:17:45.916 W/PowerManagerService(3085): Timer 0x3->0x3|0x0
02-25 19:18:03.530 D/BatteryService(3085): update start
02-25 19:18:03.564 D/BatteryService(3085): updateBattery level:67 scale:100 status:4 health:2 present:true voltage: 3931 temperature: 310 technology: Li-ion AC powered:false USB powered:false icon:17302163
02-25 19:18:03.624 I/StatusBarPolicy(3085): BAT. status:4 health:2
02-25 19:18:05.918 W/PowerManagerService(3085): Timer 0x3->0x1|0x0
02-25 19:18:05.918 I/PowerManagerService(3085): Ulight 3->1|0
02-25 19:18:05.920 I/PowerManagerService(3085): Setting target 2: cur=32.0 target=20 delta=-1.5 nominalCurrentValue=32
02-25 19:18:05.920 I/PowerManagerService(3085): Scheduling light animator!
02-25 19:18:06.068 I/PowerManagerService(3085): Light Animator Finished curIntValue=20
02-25 19:18:06.130 D/dalvikvm(11333): GC_EXTERNAL_ALLOC freed 8124 objects / 576312 bytes in 60ms
02-25 19:18:12.922 W/PowerManagerService(3085): Timer 0x1->0x0|0x0
02-25 19:18:12.922 I/PowerManagerService(3085): Ulight 1->0|0
02-25 19:18:12.924 I/PowerManagerService(3085): Setting target 2: cur=20.0 target=0 delta=-1.4285715 nominalCurrentValue=20
02-25 19:18:12.924 I/PowerManagerService(3085): Scheduling light animator!
02-25 19:18:13.108 D/dalvikvm(11333): GC_EXTERNAL_ALLOC freed 1131 objects / 68504 bytes in 52ms
02-25 19:18:13.164 I/power (3085): *** set_screen_state 0
02-25 19:18:13.164 E/SensorManager(3085): unregisterListener: com.android.server.PowerManagerService$12@48636628
02-25 19:18:13.164 I/PowerManagerService(3085): Light Animator Finished curIntValue=0
02-25 19:18:13.164 D/PowerManagerService(3085): enableLightSensor false
02-25 19:18:13.168 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:13.168 I/KeyInputQueue(3085): Input event
02-25 19:18:13.316 W/PowerManagerService(3085): CurLockF mPS:0 mUS=0
02-25 19:18:13.316 W/PowerManagerService(3085): mPokeLocks.size=0:
02-25 19:18:13.318 I/power (3085): *** set_screen_state 1
02-25 19:18:13.318 E/SensorManager(3085): registerListener 4:gp2a Light Sensor delay:240
02-25 19:18:13.318 E/SensorManager(3085): =======>>>Sensor Thread RUNNING <<<========
02-25 19:18:13.318 D/KeyInputQueue(3085): screenCaptureKeyFlag setting 0
02-25 19:18:13.318 I/PowerManagerService(3085): Ulight 0->7|0
02-25 19:18:13.318 I/PowerManagerService(3085): Setting target 2: cur=0.0 target=32 delta=2.1333334 nominalCurrentValue=0
02-25 19:18:13.318 I/PowerManagerService(3085): Scheduling light animator!
02-25 19:18:13.318 D/PowerManagerService(3085): enableLightSensor true
02-25 19:18:13.326 I/TvOut-Observer(3085): ACTION android.intent.action.SCREEN_OFF
02-25 19:18:13.326 I/TvOut-Observer(3085): tvOutSetImageString BroadcastReceiver broadcast received
02-25 19:18:13.326 I/TvOut-Observer(3085): ACTION_SCREEN_OFF
02-25 19:18:13.538 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:13.538 I/KeyInputQueue(3085): Input event
02-25 19:18:13.580 I/TvOut-Observer(3085): ACTION android.intent.action.SCREEN_ON
02-25 19:18:13.580 I/TvOut-Observer(3085): tvOutSetImageString BroadcastReceiver broadcast received
02-25 19:18:13.580 I/TvOut-Observer(3085): ACTION_SCREEN_ON
02-25 19:18:13.586 D/PowerManagerService(3085): onSensorChanged: light value: 6
02-25 19:18:13.586 D/PowerManagerService(3085): lightSensorChangedLocked 6
02-25 19:18:13.586 D/PowerManagerService(3085): lcdValue 32
02-25 19:18:13.586 D/PowerManagerService(3085): buttonValue 0
02-25 19:18:13.586 D/PowerManagerService(3085): keyboardValue 0
02-25 19:18:13.774 I/PowerManagerService(3085): Light Animator Finished curIntValue=32
02-25 19:18:16.588 W/PowerManagerService(3085): Timer 0x7->0x3|0x0
02-25 19:18:16.588 I/PowerManagerService(3085): Ulight 7->3|0
02-25 19:18:21.430 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:21.430 I/KeyInputQueue(3085): Input event
02-25 19:18:21.432 D/KeyInputQueue(3085): screenCaptureKeyFlag setting 0
02-25 19:18:21.440 E/WindowManager(3085): pkgName:com.nolanlawson.logcat
02-25 19:18:21.440 E/WindowManager(3085): className:com.nolanlawson.logcat.LogcatActivity
02-25 19:18:21.578 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:21.578 D/WindowManager(3085): I'm tired mEndcallBehavior=0x2
02-25 19:18:21.578 E/WindowManager(3085): pkgName:com.nolanlawson.logcat
02-25 19:18:21.578 E/WindowManager(3085): className:com.nolanlawson.logcat.LogcatActivity
02-25 19:18:21.578 I/KeyInputQueue(3085): Input event
02-25 19:18:21.578 I/PowerManagerService(3085): Ulight 3->0|0
02-25 19:18:21.580 I/PowerManagerService(3085): Setting target 2: cur=32.0 target=0 delta=-2.1333334 nominalCurrentValue=32
02-25 19:18:21.580 I/PowerManagerService(3085): Scheduling light animator!
02-25 19:18:21.826 I/PowerManagerService(3085): Light Animator Finished curIntValue=0
02-25 19:18:21.828 I/power (3085): *** set_screen_state 0
02-25 19:18:21.828 E/SensorManager(3085): unregisterListener: com.android.server.PowerManagerService$12@48636628
02-25 19:18:21.828 D/PowerManagerService(3085): enableLightSensor false
02-25 19:18:21.832 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:21.832 I/KeyInputQueue(3085): Input event
02-25 19:18:21.986 W/PowerManagerService(3085): CurLockF mPS:0 mUS=0
02-25 19:18:21.988 W/PowerManagerService(3085): mPokeLocks.size=0:
02-25 19:18:21.988 I/power (3085): *** set_screen_state 1
02-25 19:18:21.988 D/KeyInputQueue(3085): screenCaptureKeyFlag setting 0
02-25 19:18:21.988 I/PowerManagerService(3085): Ulight 0->7|0
02-25 19:18:21.988 I/PowerManagerService(3085): Setting target 2: cur=0.0 target=32 delta=2.1333334 nominalCurrentValue=0
02-25 19:18:21.988 I/PowerManagerService(3085): Scheduling light animator!
02-25 19:18:21.990 E/SensorManager(3085): registerListener 4:gp2a Light Sensor delay:240
02-25 19:18:21.990 E/SensorManager(3085): =======>>>Sensor Thread RUNNING <<<========
02-25 19:18:21.990 D/PowerManagerService(3085): enableLightSensor true
02-25 19:18:21.992 D/LockPatternKeyguardView(3085): mRequiresSim = false, mUpdateMonitor.isDeviceProvisioned() = true, mUpdateMonitor.getSimState() = READY
02-25 19:18:22.146 D/dalvikvm(3085): GC_FOR_MALLOC freed 21370 objects / 1435024 bytes in 116ms
02-25 19:18:22.170 E/LockPatternKeyguardView(3085): Phone is boot completed. so can send broadcast message for music player
02-25 19:18:22.170 D/PowerManagerService(3085): enableUserActivity false
02-25 19:18:22.172 D/StatusBar(3085): manageDisableList what=0x1 pkg=android
02-25 19:18:22.174 D/StatusBar(3085): DISABLE_EXPAND: yes
02-25 19:18:22.186 D/skia (3085): purging 217K from font cache [15 entries]
02-25 19:18:22.204 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:22.204 I/KeyInputQueue(3085): Input event
02-25 19:18:22.204 V/WindowManager(3085): Dsptch to Window{488b4888 Keyguard paused=false}
02-25 19:18:22.208 D/GoogleLoginService(3369): onBind: Intent { act=android.accounts.AccountAuthenticator cmp=com.google.android.gsf/.loginservice.GoogleLoginService }
02-25 19:18:22.294 I/TvOut-Observer(3085): ACTION android.intent.action.SCREEN_OFF
02-25 19:18:22.294 I/TvOut-Observer(3085): tvOutSetImageString BroadcastReceiver broadcast received
02-25 19:18:22.294 I/TvOut-Observer(3085): ACTION_SCREEN_OFF
02-25 19:18:22.300 E/LockPatternKeyguardView(3085): Phone is boot completed. so can send broadcast message for music player
02-25 19:18:22.320 D/PowerManagerService(3085): onSensorChanged: light value: 6
02-25 19:18:22.320 D/PowerManagerService(3085): lightSensorChangedLocked 6
02-25 19:18:22.320 D/PowerManagerService(3085): lcdValue 32
02-25 19:18:22.320 D/PowerManagerService(3085): buttonValue 0
02-25 19:18:22.320 D/PowerManagerService(3085): keyboardValue 0
02-25 19:18:22.354 I/TvOut-Observer(3085): ACTION android.intent.action.SCREEN_ON
02-25 19:18:22.354 I/TvOut-Observer(3085): tvOutSetImageString BroadcastReceiver broadcast received
02-25 19:18:22.354 I/TvOut-Observer(3085): ACTION_SCREEN_ON
02-25 19:18:22.488 D/dalvikvm(11333): GC_EXTERNAL_ALLOC freed 5970 objects / 325304 bytes in 28ms
02-25 19:18:22.524 D/dalvikvm(11333): GC_EXTERNAL_ALLOC freed 315 objects / 17904 bytes in 25ms
02-25 19:18:22.560 I/PowerManagerService(3085): Light Animator Finished curIntValue=32
02-25 19:18:23.279 V/InputDevice(3085): ID[0]=0(0) Dn(0=>1)
02-25 19:18:23.280 V/WindowManager(3085): Dsptch > Window{488b4888 Keyguard paused=false}
02-25 19:18:23.282 D/KeyguardViewMediator(3085): pokeWakelock(5000)
02-25 19:18:23.840 D/LockPatternKeyguardView(3085): mRequiresSim = false, mUpdateMonitor.isDeviceProvisioned() = true, mUpdateMonitor.getSimState() = READY
02-25 19:18:23.842 D/KeyguardViewMediator(3085): pokeWakelock(5000)
02-25 19:18:23.858 D/PowerManagerService(3085): enableUserActivity true
02-25 19:18:23.858 D/StatusBar(3085): manageDisableList what=0x0 pkg=android
02-25 19:18:23.860 E/KeyguardViewMediator(3085): Phone is boot completed. so can broadcast
02-25 19:18:23.882 V/UNA (3580): ScreenOnReceiver : onReceive
02-25 19:18:23.882 D/UNA (3580): [ScreenOnReceiver] ACTION_USER_PRESENT
02-25 19:18:23.882 V/UNA (3580): [UNA setting] Connection Mode = 1
02-25 19:18:23.980 W/InputManagerService(3085): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@48765348
02-25 19:18:24.122 V/InputDevice(3085): ID[0]=0(0) Up(1=>0)
02-25 19:18:25.782 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:25.784 I/KeyInputQueue(3085): Input event
02-25 19:18:25.786 V/WindowManager(3085): Dsptch to Window{48b92eb0 com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:18:25.922 E/imdg81 (3085): IsShutDownStarted()
02-25 19:18:25.922 I/KeyInputQueue(3085): Input event
02-25 19:18:25.924 V/WindowManager(3085): Dsptch to Window{48b92eb0 com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:18:27.594 V/InputDevice(3085): ID[0]=0(0) Dn(0=>1)
02-25 19:18:27.596 V/WindowManager(3085): Dsptch > Window{489224d8 AtchDlg:com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:18:27.992 V/WindowManager(3085): Dsptch > Window{489224d8 AtchDlg:com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:18:27.992 V/InputDevice(3085): ID[0]=0(0) Up(1=>0)
02-25 19:18:28.086 E/AudioTrack(3085): getAudioMode[0]
02-25 19:18:28.134 D/AudioHardwareALSA(2761):
02-25 19:18:28.134 D/AudioHardwareALSA(2761): ALSA OPEN mode 0,device 2
02-25 19:18:28.134 I/AudioHardwareALSA(2761): Try to open ALSA PLAYBACK device AndroidPlayback_Speaker_normal
02-25 19:18:28.156 I/AudioHardwareALSA(2761): Initialized ALSA PLAYBACK device AndroidPlayback_Speaker_normal
02-25 19:18:28.156 D/AudioHardwareALSA(2761): Set PLAYBACK PCM format to S16_LE (Signed 16 bit Little Endian)
02-25 19:18:28.156 D/AudioHardwareALSA(2761): Using 2 channels for PLAYBACK.
02-25 19:18:28.156 D/AudioHardwareALSA(2761): Set PLAYBACK sample rate to 44100 HZ
02-25 19:18:28.156 D/AudioHardwareALSA(2761): Buffer size: 2048
02-25 19:18:28.156 D/AudioHardwareALSA(2761): Latency: 46439
02-25 19:18:30.422 V/InputDevice(3085): ID[0]=0(0) Dn(0=>1)
02-25 19:18:30.426 V/WindowManager(3085): Dsptch > Window{4893ad58 com.nolanlawson.logcat/com.nolanlawson.logcat.LogcatActivity paused=false}
02-25 19:18:30.568 D/dalvikvm(11333): GC_FOR_MALLOC freed 7161 objects / 414040 bytes in 27ms