I have also enabled the audio passthrough from the openelec's (raspberry os) options with the config hdmi_force_edid_audio=1 which basically overrides the D6900 edid and enables support for all codecs.
What I get in the TV's audio menu (when the movie supports AC3 or DTS) is an option PCM and AC3 or DTS. But then the sound is NOT carried out to the amplifier. My amp is a Yamaha 5.1 older model with no HDMI in.
So basically the question is are you sure audio passthough with edid override is supported in the Samsung series C and above? Or am I doing something wrong? Are your instructions maybe for the B series?
And finally why should this work with the F series and a PC and not with the D series and raspberry? (hdmi_force_edid_audio=1 in the raspberry's config tells it to support all codecs including AC3 and DTS and up to 8 channels with up to very high bitrates)
I think you can try this :
-enable external audio output in TV menu
-In XBMC system audio settings : check that ac3 and dts support are enabled
However, the AC3 stream "stops" inside the TV. It is not carried out to the amp through the SPDIF optical link since the Yamaha stays silent and PCM is still lit on the amp's screen. That means the audio passthrough does not work.
I am wondering if someone else has actually managed to do this using a PC so that I understand whether this is a raspberry issue or a TV issue.
I did a funny test : 6 channels PCM set in XBMC (AC3 and DTS both disabled) . Guess what : surprise the TV outputs front left and front righ channels fine. I had no voice on TV, which is normal. So I guess TV could forward PCM including multichannel PCM as is. Worth to try this but I was told that spdif bandwidth is not able to transfer the multichannel PCM fine. It's a pitty !
I have a Samsung UE40F6500 and can't get DTS OR DD5.1 pass through working from TVs HDMI in... to TVs optical output.
Zanfur, I have tried your approach of overriding the EDID on my HTPC and still no luck. I managed to get the TV "accepting" the DD5.1 OR DTS, because the audio options appeared in the TVs menu. But the audio got stuck in the TV and nothing came out to the Amp. I was wondering if you could post your EDID so I could load it into the EDID editor and see if something is set up differently to mine.
Spent hours/days on this so far. Please help!