Realtek Speaker Fill vs In-Game True 5.1

[suryanguju]

I have Logitech Z506 5.1 Speakers, Realtek 8-channel Onboard HD Audio & The Speaker Fill option is turned on. So That means the 2.1 Stereo Audio from the Front Speakers would be copied & played through the Rear Speakers, right?
Now when playing a True 5.1 Game, Do I need to turn off the Speaker Fill Option to experience True Surround Sound from the game?
Can they coexist...?

Complete NOOB Here...!

 

[suryanguju]

I'm Sorry! I posted this on Windows 8 Forum, but I have Windows 7...

 

[suryanguju]

OK! After A LOT of searching forums, reading posts & frustration, I finally figured it out myself...

Those 2 options can work "Simultaneously".
When Realtek HD Audio detects a Stereo Signal, it enables Speaker-Fill. But whenever a True 5.1 Surround Sound Signal is coming from a game or any other source, the Speake-Fill gets disabled & the 5.1 Surround Sound takes over...

But, I'm NOT an IT-Pro. So anybody out there in this good forum, Correct me if I'm Wrong...
Pretty Please...!