Need Help on Acer Aspire 5755g 5.1 surround sound

hi thanks in advance, i bought acer aspire 5755g, i was quite happy with performance but overheating while playing latest games. my question is acer 5755g has realtek HD auido and intel HD but no 5.1 surround sound option.
i need this to watch movies and playing games in 5.1 surround sound through my home theater. in sound setting i see only 2 stereo and below it surround sound but it in unclickable. can anybody guide me how can i get it. View attachment 82975

 

Did you take this screenshot with 5.1 audio setup connected?
Also check Realtek HD Audio Manager.

 

sorry sir i check all my programs there is no " realtek HD audio manager program". i tried updating all my drivers.

 

I play games on my laptop as well and it restarts or turns off due to heating, i have figured out a method by which it doesn't restart or turns off. If you are a student and you have thick books with you then you have got the solution to keep your laptop cool and calm. Simply put the books spaced and mount the laptop on it, the position of laptop might be like the boundaries of your laptop will be on the books and there is enough space between the books so that the air can pass by beneath the laptop.
And the second problem you have is that you don't have a 5.1 audio channel support sound card in you system so you cannot have that. Rather buy good 2.1 channel speakers with a 5.25 inches woofer. That will help you enjoy listening some good bass sounds.

 

SpeedofSilence is right- I dodn't check that but this notebook uses Realtek ALC269 which is a two channel card.

 

thanks for ur valuable suggestions. can i upgrade my machine to 5.1 channel audio card