title: Logcat won't display Log.d messages
body: <p>I'm developing an Android application and I would like to have some way to print debug statements as my code runs. Fortunately for me, Logcat was able to print out Log.d messages when I run my application on an Android 2.3.3 (API 10) emulator.</p>
  
  <p>However, when I tested the same exact application on a physical device (Samsung Galaxy S4 Android 4.2.2) I was unable to see anything other than dalvikvm and AndroidRuntime messages.</p>
  
  <pre><code>com.android.internal.os.RuntimeInit &lt;&lt;&lt;&lt;&lt;&lt;
  07-28 04:49:24.165: DEBUG/AndroidRuntime(6378): CheckJNI is OFF
  07-28 04:49:24.165: DEBUG/AndroidRuntime(6378): setted country_code = USA
  07-28 04:49:24.165: DEBUG/AndroidRuntime(6378): setted countryiso_code = US
  07-28 04:49:24.175: DEBUG/AndroidRuntime(6378): setted sales_code = VZW
  07-28 04:49:24.175: DEBUG/AndroidRuntime(6378): readGMSProperty: start
  07-28 04:49:24.175: DEBUG/AndroidRuntime(6378): readGMSProperty: already setted!!
  07-28 04:49:24.175: DEBUG/AndroidRuntime(6378): readGMSProperty: end
  07-28 04:49:24.175: DEBUG/AndroidRuntime(6378): addProductProperty: start
  07-28 04:49:24.185: DEBUG/dalvikvm(6378): Trying to load lib libjavacore.so 0x0
  07-28 04:49:24.185: DEBUG/dalvikvm(6378): Added shared lib libjavacore.so 0x0
  07-28 04:49:24.195: DEBUG/dalvikvm(6378): Trying to load lib libnativehelper.so 0x0
  07-28 04:49:24.195: DEBUG/dalvikvm(6378): Added shared lib libnativehelper.so 0x0
  07-28 04:49:24.385: DEBUG/AndroidRuntime(6378): Calling main entry com.android.commands.pm.Pm
  07-28 04:49:26.978: DEBUG/AndroidRuntime(6378): Shutting down VM
  07-28 04:49:26.988: DEBUG/dalvikvm(6378): GC_CONCURRENT freed 157K, 21% free 627K/788K, paused 1ms+0ms, total 4ms
  07-28 04:49:26.988: DEBUG/jdwp(6378): Got wake-up signal, bailing out of select
  07-28 04:49:26.988: DEBUG/dalvikvm(6378): Debugger has detached; object registry had 1 entries
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): &gt;&gt;&gt;&gt;&gt;&gt; AndroidRuntime START com.android.internal.os.RuntimeInit &lt;&lt;&lt;&lt;&lt;&lt;
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): CheckJNI is OFF
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): setted country_code = USA
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): setted countryiso_code = US
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): setted sales_code = VZW
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): readGMSProperty: start
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): readGMSProperty: already setted!!
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): readGMSProperty: end
  07-28 04:49:27.458: DEBUG/AndroidRuntime(6420): addProductProperty: start
  07-28 04:49:27.468: DEBUG/dalvikvm(6420): Trying to load lib libjavacore.so 0x0
  07-28 04:49:27.478: DEBUG/dalvikvm(6420): Added shared lib libjavacore.so 0x0
  07-28 04:49:27.478: DEBUG/dalvikvm(6420): Trying to load lib libnativehelper.so 0x0
  07-28 04:49:27.478: DEBUG/dalvikvm(6420): Added shared lib libnativehelper.so 0x0
  07-28 04:49:27.649: DEBUG/AndroidRuntime(6420): Calling main entry com.android.commands.am.Am
  07-28 04:49:27.659: DEBUG/dalvikvm(6420): Note: class Landroid/app/ActivityManagerNative; has 169 unimplemented (abstract) methods
  07-28 04:49:27.719: DEBUG/AndroidRuntime(6420): Shutting down VM
  07-28 04:49:27.729: DEBUG/dalvikvm(6420): GC_CONCURRENT freed 157K, 20% free 666K/828K, paused 0ms+1ms, total 3ms
  07-28 04:49:27.729: DEBUG/jdwp(6420): Got wake-up signal, bailing out of select
  07-28 04:49:27.729: DEBUG/dalvikvm(6420): Debugger has detached; object registry had 1 entries
  </code></pre>
  
  <p>I'm not exactly sure what is going on since Logcat is correctly targeting my physical device, it shows up on adb devices, and USB Debugging is on.</p>
  
  <p>I've tried using Log.e but that had no effect on the output.</p>
  
  <p>I even set android:debuggable="true" in AndroidManifest.xml.</p>
  
  <p>Is there something I'm missing here? Why won't Logcat display my debug messages when running my app on my physical device?</p>
  
  <p>EDIT: I tried the same app on a Android 4.2.2 emulator and Logcat works as expected with the emulator, but there's still the problem with Logcat through the USB device. Instead of the verbosity of a normal Logcat printout, the block I posted is the only thing I see on the Verbose log level.</p>