XO Troubleshooting AV

This is the portion of the XO Troubleshooting Guide for diagnosing problems with the audio and camera components of an XO laptop.

Open Firmware Tests

A stereo sweep pattern is output for testing the speakers/headset jack when running the Open Firmware hardware self-tests. A microphone test, where audio is recorded, then played back (at low volume) is also included. These are activated by holding down the left side of the rocker switch (on the left side of the screen) when the laptop is powered on.

Testing from Sugar

The "Tam Tam Mini" activity is a good source of audio for testing. The default sound source (guitar) is OK. Press the one of the "QWERTYUI" keys to obtain a sound. It generates a sound in both stereo channels.

You can increase the output volume of Tam Tam Mini using the rightmost of the four sliders in the upper left corner.

Ensure that the laptop output volume is turned up using the "volume adjust" keys

No sound through one of the speakers

If no sound is heard through one of the speakers

No sound through either speaker

If no sound is heard through either speaker, try using the headphone jack.

If no sound is heard through the headphone jack,

Garbled sound or rattling from a speaker

When a (loud) sound is played, one (or both) speakers rattle or garble the sound.

Use the headphone jack to verify that the

In some cases, this is dues

No sound through the headphones

If the speakers function correctly, this is caused by the headphone connector.