I had bought the Rift S only to find that the graphics card on my laptop was too old for it. So I bought from a private seller the Rift CV1, hoping it connects right. But it just says the HDMI is not connected. Any ideas?
Maybe double check the hdmi connections (headset and PC sides). Also have a look at the Oculus Rift (s and cv1) requirements and run the compatibility checker. See this link;
i9 13900K water cooled, RTX4090, Z790 MB w/wifi6e, 32Gb 6400 ram, 2x2TB SSD, 1000W PSU, Win 11, QPro, Q3, w/Link and Air Link, Vive Pro1 with Etsy lens mod and Index Controllers