HDMI 2.1 Chipset Bug in some AV Receivers

Back In Oct.2020  a German audio website discovered a bug in the latest HDMI 2.1 chipsets sourced by Panasonic and utilised in the new Denon, Marantz and Yamaha HDMI 2.1 AV receivers. This bug can inhibit pass through of 4k/120Hz HDR and 8k/60 HDR for some devices like NVIDIA’s newest graphics cards and the latest XBOX Series X gaming console. When engaging these resolutions with these source devices directly connected to an HDMI 2.1 capable receiver utilizing the Panasonic HDMI 2.1 chipset, the user can experience a blank screen. This is a potential problem for any other manufacturer planning on using this HDMI 2.1 chipset in their next generation of HDMI 2.1 AV receivers as well. Ruipro have upped the game with new 8k Gen 3 version. It looks like Sound unlimited have also found as solution for this problem here.