Hi, I've connected my Asus monitor Model:VG245H to my Samsung notebook laptop using an HDMI cable to use the monitor as an extended screen. I'm currently watching a movie on my laptop and a Youtube video is playing on the monitor where my little brother is watching. There's a sound on my laptop but no sound on the monitor when I switch default sound setting as monitor the sound goes to monitor but none to my laptop. How can I have sound for both at same time? Thanks! Also my monitor has a built in speaker but I think its using HDMI as the audio.