LG blue rar disc player will only work in Aux HDMI port with Onkyo TX-NR656 (1 Viewer)

[Edward J Veneziale]

I can only get my LG blue ray disc player to display on my Samsung Q70R tv if I plug the HDMI cable into the front Aux HDMI port. It used to work when it was plugged into the BD/DVD HDMI port in the back . I have tried all the rear ports and none work with the LG player. I also tried a different HDMI cable with no success but those cables will work in the front Aux HDMI port. I did just upgrade to the Samsung Q70R tv which has HDMI ARC. Do I need to upgrade my HDMI cable for the LG player? I have tried adjusting all settings on the Onkyo. Is there something wrong with the Onkyo hardware? My cable box connection works perfectly through the Onkyo. Any suggestions?