2012-08-03, 17:51
I'm seeing the stuttering issue as well (actually, the codec info shows a very low framerate of 3-18fps) and I don't have Realtek/AMD in my machine. I have an NVIDIA G210 + VIA onboard optical out. My old receiver is only capable of AC3 decoding, so everything else is unchecked. When I watch a movie with Dolby Digital, I don't notice any immediate issues, but when I view a movie with DTS or any other codec that needs to be re-encoded as AC3, it starts stuttering like crazy. It's made even worse if I have "Boost volume level on downmix" enabled and "Output stereo to all speakers." If I disable AC3 capable and leave it to pass stereo LPCM then there doesn't appear to be any stuttering. These same videos work fine on Eden.