07-22-2011 06:47 AM
The issue here is that HDMI cables, as the name indicates, carry audio signals to the monitor. Therefore if the monitor has no built in speakers then there will be no sound. If you have external speakers you can plug them into the audio out slot on the back of the monitor and the problem will be solved.
However, if the screen does have built in speakers you need to go Control Panel>Hardware and Sound>Manage Audio Devices and set either your headphone jack or the screen to be the default device. And then you ca pick which device the sound will play from. Either yourlaptop speakers or whateer speakers are plugged into the laptop or the Monitor and whatever speakers are plugged into the monitor