pc gt640 connected to 3d dhtv via hdmi arc. 5.1 sound issue

samyb333

Honorable
Aug 29, 2012
3
0
10,510
my pc is connected by 1.4a hdmi to hdtv hdmi arc and then optical out from tv to surround system.

the pc only sees stero and does not give 5.1 sound option.

may be edid info sent back from tv wich is a lg42640b tv.


the tv is seen on wireless device as well and will play musioc using streaming. but when i look at options on sound output it states stero dts or dolby digital only.

it just will not see the 5.1 system. 5.1 system works fine on tv. i have game that uses 5.1 but plays in stero.

plays sound to 2 speakers when sending sigbal to front right uses front and back right. same thing when using left speaker plays to front and back left.

how can i get pc to see all system via hdmi cable. as card is capable of 7.1 and should work.

tried windows vista then 8 and 8.1 pro all 64bit.

jad to upgrade to 8 as 3d vision no longer works with vista i was told.

still does not work either now.

i dont want to need to get long cavles to run from pc to sound system ass trying to cut down on all cables all over the place. keep tripping up on my walking stick. lol

so no proper sound and no 3d vision and monitor driver is generic as no lg tv drivers.

 

samyb333

Honorable
Aug 29, 2012
3
0
10,510
according to geforce support graphics card capable of 7.1 sound output via hdmi 1.4a.

sound card not required. built in to graphics card.

only possible problem could be edid info of lg tv. but got no further than that so far.

know of other people that have it working but not using lg tv. other hdtv and optical to 5.1 surround. information should feed back via hdmi arc.