Chosen Solution
Hi there, I just purchased two Apple Cinema Displays - both “30”. I checked each display before I bought it – worked perfectly. However, after driving home with the displays and plugging each into my MBP M1 via a separate USB-C to Dual DVI adapter, one display works perfectly (and is detected as Cinema HD), but the other display is showing just a black screen, and the LED power indicator is also dark, and is detected, but not as a Cinema HD display, but as “Display”. Any ideas on what I should do? This is what the System Information shows: Apple M1 Pro: Chipset Model: Apple M1 Pro Type: GPU Bus: Built-In Total Number of Cores: 14 Vendor: Apple (0x106b) Metal Family: Supported, Metal GPUFamily Apple 7 Displays: Cinema HD: Resolution: 2560 x 1600 UI Looks like: 2560 x 1600 @ 60.00Hz Main Display: Yes Mirror: On Mirror Status: Master Mirror Online: Yes Rotation: Supported Display: Resolution: 2560 x 1600 UI Looks like: 2560 x 1600 @ 60.00Hz Mirror: On Mirror Status: Hardware Mirror Online: Yes Rotation: Supported
Hi I have one of these too (with the same issue)and I have found that if I use a adapter to put it in a different port(in my case it’s DVI to HDMI)it will work just fine again I don’t think it’s a problem with the display,I think it’s just a strange case of it acting strange and not communicating with the computer/GPU correctly Hopefully this helps Any questions please ask Thanks:-)
