I have an older laptop with a 1366x768 resolution screen and I'm using an hdmi to connect it to a 1080p tv with a 5.1 surround sound system to watch movies. Would the tv would show true/native 1080p even though my laptop's resolution is less (assumming I'm watching 1080p source material), or would it just be upscaled? I think that if my laptop's processor and graphics hardware can handle 1080p that it would just use the TV as the primary monitor and be able to display proper 1080p but I'm not really sure so I'd love to know. Also, as far as audio goes, if my laptop doesn't have a dedicated soundcard or the greatest speakers, how would the sound be outputted to the surround sound system hooked up to the tv? Would the surround sound speakers just take over and do all the work, or would it matter that my laptops speakers aren't the greatest and thus the sound quality from the surround sound would suffer. If I did have a sound card or better laptop speakers, would the sound quality from the TV-connected speakers improve? I'm also asking this because I'll probably be upgrading to a newer laptop that'll have 1080p resolution but we also have a 4k tv that I usually don't plug into because I don't know if my laptop could even handle it. How does all work? Thanks in advance!