Originaly my ASRock X99 Extreme6 comes with ALC1150 and plays DTS Interactive out of the box, but I bought Steelseries Siberia 840 which requires Dolby Digital 5.1.
I got working DDL on Windows 10 1511 build when installed patched latest drivers "7917_PG448_Win10_TH_RS_Win8.1_Win8_Win7_WHQL" and...