My Spectrum is working correctly on my Windows PC via HDMI and everything looks great. When I plug my M1 MacBook Air to the USB-C input, switch the input on the Spectrum, the Mac charges, but doesn’t detect a second display. The Spectrum eventually says “No Signal” and goes to sleep. I’ve tried the same on my Intel iMac with the same result. I’ve tried the USB-C cable that came with the Mac as well as a USB-C Thunderbolt cable from my 24" LG that I know works.
I’ve updated the Spectrum to the latest firmware, and it didn’t help. Has anyone else seen this?