New TV, old AVR and HDMI splitter

I suppose there are more users who by buying a new TV keep their old AVR. If they use HDMI splitter in combination with a new TV and older AVR certainly have a problem with HDR. Copying the disp_cap file to /storage/.code/userdata/ solves the problem with TV resolution, but not the HDR. I think that copying hdr_cap in /storage/.kodi/userdata/ and processing it we can solve the problem of HDR. Currently, I solved this problem by blocking the pin 15 on the cable from the splitter to the AVR.

First cable from the switch is connected to the TV and second is connected to the AVR.

I use AVR only for audio and AVR is not connected to the TV.