The final connection path should be like that shown in the following diagram:
Notebook or desktop computer
i. VGA cable
ii. VGA to 
or ii
cable
iii.Audio cable
iii
Many notebooks do not turn on their external video ports when connected to a projector. Usually a key combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a function key labeled CRT/LCD or a function key with a monitor symbol on the notebook. Press FN and the labeled function key simultaneously. Refer to your notebook's documentation to find your notebook's key combination.
