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Remove the power cord to the monitor for about 10 seconds and plug it in again while still connected to Mac.💡 If your macOS Ventura external display not working, try these workarounds: Alternatively, attach it straight to your Mac. Try utilizing a hub or an Apple USB-C Digital AV multiport adapter if you are directly connecting the display to your Mac. For instance, you can switch to an HDMI port if you were using the USB port with an adapter if needed.īesides, you can also connect the display in another way. It's advisable to try different cables and ports. You will find your MacBook not recognizing external monitors if the cable or port is having issues such as Mac Thunderbolt not working. Use a different way to connect the external display to your Mac

Change the DisplayPortVersion from 1.4 to 1.2 Allow Accessories to connect to USB-C connections It's best to try the solutions in order until the display is detected and functions as intended because every scenario is unique, and what works for one person may not work for another.ĩ fixes to resolve "macOS Ventura not detecting external monitor": This post will tell you what to do if your Mac does not recognize external monitors on macOS Ventura, Monterey, or other macOS versions. The problem has affected various third-party external display brands, such as LG, Dell, Samsung, BenQ, etc.Īpart from Mac not detecting monitors on Ventura, you may also encounter other external display problems like garbled/unstable connection, not supporting the native resolution, HDMI not working, improper scaling, temporary blackouts, or screen flickering. It's not uncommon to see Mac not recognizing external monitors after updating to macOS Ventura, Monterey, Big Sur, Catalina, etc., especially on macOS Monterey 12.3 and 12.4. Fix Mac Not Recognizing External Monitor on Ventura/Monterey/Big Sur