Portta Extractor v1.4 and stereo SPDIF converter and HDMI audio to analog HDMI 3.5mm Full 3D 4Kx2K 340 MHz (Electronics)
I must have fallen on a product DEFECTIVE: Do not leave any sound output SPDIF / toslink. Or sound jack 3.5 when connected to a HDMI adapter / DVI. Avoid!