Your computer has reached its external display limit no Luna Display found in 10s matching serialĮven if your computer meets our minimum system requirements, there could be other things that are affecting how Luna is able (or not able) to communicate with your Mac. If this is not the case, the adapter needs to be changed.Oops! something went wrong. In this case, first, try to check if the adapter works with other devices. Another problem could be that the adapter is not working properly. The problem is neither your computer nor your external monitor.

Step 2: Select the Action tab and click the Scan for hardware changes option.Īfter you scan for hardware changes, Windows may recognize an attached USB to HDMI adapter. Then select your PC at the top of Device Manager. To solve the USB C to HDMI not working issue, you can scan for hardware changes. Alternatively, if you are using a USB to HDMI hub and have a spare, switch between them to see if this is not a hardware issue. So, try connecting your USB to an HDMI adapter that has another port on your desktop or laptop. There may be a problem with the USB port used to connect the USB to the HDMI adapter. Solution 3: Connect to an Alternative USB Port / Change Hub

Then right click on your USB device and select Update Driver. Step 2: In the Device Manager window, expand the Other Devices option. Step 1: Right click the Windows icon on the taskbar and then select the Device Manager option. So, updating the USB to HDMI adapter driver might fix it. The USB C to HDMI not working issue can be caused by incorrect or incompatible device drivers. Read More Solution 2: Update the USB to HDMI Driver

Usb c to hdmi not working mac