I am attempting to connect an external Samsung monitor to my MacBook Air, but it is not being detected by MacBook Air. in System Preferences, holding down the option key does not bring up the "detect displays" button either. I can plug in anything else with a thunderbolt adapter but this is the only thing that does not seem to work. Any ideas on how to fix this?
MacBook Air 13″, macOS 12.3
Hey there, ccvit1.
Check out the steps below for when an external display isn't detected:
"Before you begin
Make sure that your Mac is running the latest version of macOS.
If your display is blank or not detected
Try these steps if you don't see an image on your display.
Check your cable or adapter
Disconnect the cable from your external display from your Mac, then reconnect it. If the cable from your external display doesn't connect to the ports on your Mac, you can use a USB-C or Thunderbolt adapter. If you're using a USB-C or Thunderbolt adapter to connect a display, the adapter must be compliant with DisplayPort Alt Mode or Thunderbolt / USB 4.
Check how many displays you can connect
If you're connecting multiple displays to your Mac, use the Tech Specs page to find out how many external displays your Mac supports.
Those steps can be found here: If your external display isn't detected or appears blurry when connected to your Mac - Apple Support
The following article also has some helpful information when connecting an external display to a MacBook Air: Use an external display with your MacBook Air - Apple Support
Let us know if those steps help or if you've already tried those.
Take care!
Hey there, ccvit1.
Check out the steps below for when an external display isn't detected:
"Before you begin
Make sure that your Mac is running the latest version of macOS.
If your display is blank or not detected
Try these steps if you don't see an image on your display.
Check your cable or adapter
Disconnect the cable from your external display from your Mac, then reconnect it. If the cable from your external display doesn't connect to the ports on your Mac, you can use a USB-C or Thunderbolt adapter. If you're using a USB-C or Thunderbolt adapter to connect a display, the adapter must be compliant with DisplayPort Alt Mode or Thunderbolt / USB 4.
Check how many displays you can connect
If you're connecting multiple displays to your Mac, use the Tech Specs page to find out how many external displays your Mac supports.
Those steps can be found here: If your external display isn't detected or appears blurry when connected to your Mac - Apple Support
The following article also has some helpful information when connecting an external display to a MacBook Air: Use an external display with your MacBook Air - Apple Support
Let us know if those steps help or if you've already tried those.
Take care!
Cannot connect display to MacBook Air
