Hi Sam Still my hdmi dropouts problem using 4k 10 bits uhd hdr files. It s working when using an Hdmi amplifier between the vero4k and my projector. It doesn’t work when going through my Yamaha receiver (2060)… I 've very good HDMI 18gbps certified cables. Is It not a problem with the HDMI PHY…

Sam! Using the hpd lock command is working ! How to do now to do this command automatic? In rc.local? Thanks!