title: Can't show android device in ubuntu 13.04
body: <p>I have a Android tablet device that can't be showed by android devices on my laptop(T61), but it worked fine on DELL PC with the same OS: Ubuntu 13.04. </p>
  
  <p>I've update the adb to the latest platform-tools:18.0.1 and </p>
  
  <pre><code>export ADB_TRACE=all
  </code></pre>
  
  <p>After :</p>
  
  <pre><code>$sudo adb kill-server 
  $sudo adb start-server
  $ adb devices
  </code></pre>
  
  <p>it shows:</p>
  
  <blockquote>
    <p>system/core/adb/adb.c::main():Handling commandline()
    system/core/adb/adb_client.c::adb_query():adb_query: host:devices
    system/core/adb/adb_client.c::_adb_connect():_adb_connect:
    host:version system/core/adb/transport.c::writex():writex: fd=3 len=4:
    30303063 000c system/core/adb/transport.c::writex():writex: fd=3
    len=12: 686f73743a76657273696f6e host:version
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4 got=4
    4f4b4159 OKAY
    system/core/adb/adb_client.c::_adb_connect():_adb_connect: return fd 3
    system/core/adb/adb_client.c::adb_connect():adb_connect: service
    host:devices system/core/adb/transport.c::readx():readx: fd=3 wanted=4
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4 got=4
    30303034 0004 system/core/adb/transport.c::readx():readx: fd=3
    wanted=4 system/core/adb/transport.c::readx():readx: fd=3 wanted=4
    got=4 30303166 001f
    system/core/adb/adb_client.c::_adb_connect():_adb_connect:
    host:devices system/core/adb/transport.c::writex():writex: fd=3 len=4:
    30303063 000c system/core/adb/transport.c::writex():writex: fd=3
    len=12: 686f73743a64657669636573 host:devices
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4 got=4
    4f4b4159 OKAY
    system/core/adb/adb_client.c::_adb_connect():_adb_connect: return fd 3
    system/core/adb/adb_client.c::adb_connect():adb_connect: return fd 3
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4
    system/core/adb/transport.c::readx():readx: fd=3 wanted=4 got=4
    30303030 0000 system/core/adb/transport.c::readx():readx: fd=3
    wanted=0 system/core/adb/transport.c::readx():readx: fd=3 wanted=0
    got=0<br>
    List of devices attached</p>
  </blockquote>
  
  <p>The <strong>List of devices attached</strong> is NOTHING!</p>
  
  <p>But when I used:</p>
  
  <pre><code>$lsusb
  </code></pre>
  
  <p>It shows <strong>Bus 001 Device 007: ID 2207:0010</strong></p>
  
  <p>And the tablet also shows "<strong>USB debugging connected</strong>", which can also be mounted as 
  "<strong>USB mass storage</strong>".</p>
  
  <p>So WHY the <strong>adb devices</strong> shows nothing (only on my laptop)?</p>