Problems with HDCP 2.2 compatibility

Hi guys !

I just bought a AV receiver and a few speakers to go along with it but I have problems with the protocol HDCP 2.2.
Indeed, my Receiver is a DENON 1300W which is 4k compatible but my TV is not (3-4 yo and next big purchase, but end of the year or start of next year)
But, since my TV receiver and my xbox one are 4k compatible and they see that my receiver is too, they only transmit 4k video with protocol HDCP 2.2 and the only thing I have on my TV is a black screen with a message : your tv is not compatible with hdcp 2.2... They work fine if i connect directly on tv but I did not buy a AV receiver to connect it all to the tv...
So I was wondering if there is a dongle or something that would trick the different elements into thinking there is no 4k ?
Thx !