Hey guys, I have a 2017 Macbook Air and i just bought a 24'' Hp Monitor. When i try to connect it to the monitor via thunderbolt 2 to hdmi cable which is also new i get a blank screen. My laptop detects the monitor/tv it's connected to but it displays nothing. Laptop is running the latest mac os Catalina 10.15.6. I have tried everything from SMC reset to reinstalling mac os but nothing worked.
MacBook Air
Perhaps the matter may require a different adapter or cable
with correct plugs to match the ports on both ends?
• Connect a display, TV, or projector to Mac - Apple Support
The build model & vintage of your MacBook Air could require
better identification to match suitable cable adapter + display.
(Above article shows slightly different info depending on macOS.)
• About the video ports on Mac - Apple Support
https://support.apple.com/guide/mac-help/about-video-ports-cpmh0014/10.14/mac/10.14
Good luck & happy trails!🌞🎣
Perhaps the matter may require a different adapter or cable
with correct plugs to match the ports on both ends?
• Connect a display, TV, or projector to Mac - Apple Support
The build model & vintage of your MacBook Air could require
better identification to match suitable cable adapter + display.
(Above article shows slightly different info depending on macOS.)
• About the video ports on Mac - Apple Support
https://support.apple.com/guide/mac-help/about-video-ports-cpmh0014/10.14/mac/10.14
Good luck & happy trails!🌞🎣
Maybe if both MacBook/Air build models of similar configuration
only have one issue in common, and the external display shows
evidence ~ you may need again try SMC reset, and NVRAM reset.
And then schedule Authorized service to have the unit repaired.
• Mac Repair - Official Apple Support
https://support.apple.com/mac/repair/service
• Apple Repair and Repair Status Check - Official Apple Support
https://support.apple.com/repair
Depending on your location, the Apple service center could send
a shipping carton, to return macbook for repair; & back when done.
Good luck & happy computing!🍀🌤
The instructions in this 'reinstall from macOS recovery' also has an Erase
instruction before re-installing; then it comes as download from Internet.
(Otherwise, the special partition on your Mac's drive, retains a macOS.)
• How to reinstall macOS from macOS Recovery - Apple Support
https://support.apple.com/en-us/HT204904
• How to erase a disk for Mac - Apple Support
https://support.apple.com/en-us/HT208496
Once erased and as part of re-install, the Drive requires a Reformat.
Those instructions (and then some) are included in above link. Be
sure to exit or quit the Disk Utility, before attempting the re-install.
Backups on separate drives (and Time Machine, on its own HDD)
are always recommended; as these should help recover lost files
& to fully re-install your Mac. Even if you wipe entire main drive.
Good luck & happy trails!☀️🌎
The ports used and cables used are correct as i tried it with another similar macbook air with the same mac os and it worked perfectly fine.
Would erasing my harddrive help?
Macbook Air External Display Not Working.
