I was using my Accer computer with HDMI to get videos only on screen and earphone connection from computer to sound system head to get my sound from system speakers. Now I am using an HP computer and when I hook everything up as I did with the Accer the sound comes through the projector. Do I need to change a setting on the HP computer?
Yes you have to change settings on HP Laptop. After connecting your projector and laptop with hdmi cable, then go to start --->select control panel --> select hardware and sound ---> under sound select adjust system volume ---> under device select speakers[computer speakers] in place of hdmi [ which is might be set to default ]
Now you are ready to get sound from your hp laptop speakers which you can further connect with earphone or external speakers.
Let me know if it help or need further help, hit me if you need further help. Cheers...