A:Answer You will need to consult the owner's manual for the projector about how to connect your laptop to it for your video source. Your laptop should have an HDMI Out that you can connect to an HDMI on your projector if is has HDMI ports on it. Unfortunately, without knowing what connectivity your projector has, we cannot determine if you can connect the Soundbar to it. The LG 3.1-Channel 420W Soundbar with Wireless Subwoofer and DTS Virtual:X - Black, Model # SN6Y can be connected in one of three ways. It is a Bluetooth enabled Soundbar so if your projector supports Bluetooth, you can pair it with the Soundbar. The second way to connect the Soundbar is through its HDMI ARC port which can be connected to an HDMI ARC port if your projector has one. The third way is to connect the Soundbar through its Optical Digital Audio Input if you projector has an Optical Digital Audio Output...^IFV