What I want to do is use my LCD Monitor BenQ RL2455HM as speakers from my PC.
Example if I turn on a film on my PC I want the sound coming out of my monitor speakers not my headphones.
The sound works perfectly when I am connecting my PS3 through HDMI to my PC.
I just want the sound coming out of the Monitors Speakers.
using DVi you may set that in windows sound / playback devices
of like me I use a DVi-i /vid card to hdmi/ monitor and if I need to use the monitor speakers I change the default from the speaker [with check mark showing that my sound device used ] to the monitor one that shows ready . then my sound is through the monitor speakers instead of the pc speakers
your monitors manual should cover that and how to or whats required to do so
if you video card has HDMI, DVI(White connector) and VGA (blue connector)
1.remove all except HDMI. you only need 1 source of signal from video card to monitor and HDSMI is all you need.
1a. reboot computer your video card should find only a signal to HDMI and image now should show.
2. speaker icon on toolbar near clock, right click on it and select "playback devices", then select your monitor hdmi as your default.