[fix] macos Ventura/Monterey not recognizing external monitor (2023)

It's not uncommon to seeMac does not recognize external monitorsafter upgrading tomacOS is coming, Monterey, Big Sur, Catalina, etc., especially on macOS Monterey 12.3 and 12.4. The problem affected several brands of third-party external monitors like LG, Dell, Samsung, BenQ, etc.

In addition to the Mac not recognizing any monitors on the Ventura, you may also encounter other external display issues such as: B. unstable or distorted connection, no native resolution support, HDMI not working, incorrect scaling, intermittent power cuts or screen flickering.

This post tells you what to do if youMac does not recognize external monitors in macOS Ventura, Monterey or other versions of macOS. It is best to try the solutions in order until the screen is recognized and works as expected, as every scenario is unique and what works for one person may not work for another.

9 fixes to fix "macOS Ventura does not recognize an external monitor":

• 1. Use another method to connect the external monitor to your Mac
• 2. Allow accessories to be connected to USB-C ports
• 3. Boot into Safe Mode
• 4. Change the DisplayPort version from 1.4 to 1.2
• 5. Update the hub driver or software
• 6. Change screen resolution
• 7. Update your Mac
• 8. Disable "Automatically change graphics"
• 9. Downgrade macOS

Use another method to connect the external monitor to your Mac

You may find that your MacBook does not recognize external displays if the cable or connector has problems such as a broken wiremac thunderbolt not working. It is advisable to experiment with different cables and connectors. For example, you can use an adapter to switch to an HDMI port if you're using the USB port.

In addition, you can also connect the screen in other ways. If you're connecting the display directly to your Mac, try using an Apple USB-C Digital AV Multiport Hub or Adapter. Alternatively, you can connect it directly to your Mac.

💡 And youmacOS Ventura external monitor not working, try these workarounds:

Boot into safe mode

Restart your Macsecurity modeIt is also an effective solution to fix MacBook not recognizing external monitor issue on macOS Ventura. Starts your Mac with only the essentials loaded, preventing third-party login items and unnecessary apps or extensions from cluttering up your external display.

Note that the steps to enter Safe Mode are different on Intel and Apple Silicon Macs. Once you are in Safe Mode, you will see "Safe Boot" in the menu bar.

Fix MacBook Not Recognizing External Display on Intel Mac:

Fix MacBook not recognizing external monitor on Apple Silicon Macs (M1 and M2):

You should test if the external monitor is detected in safe mode. In this case, restart your Mac and check if the problem is resolved. If it only works in safe mode, try removing unnecessary login items or disabling third-party cleaning software, antivirus tools, VPN apps, etc.

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Change the DisplayPort version from 1.4 to 1.2

Some users experiencing Mac mini not detecting external displays in macOS Ventura have been able to resolve the issue by changing the display settings in Preferences > General > DisplayPort Version from 1.4 to 1.2. If there are similar settings on your monitor, you should try it.

Update the hub driver or software

Most likely, the USB hub or adapter driver used for the display is not yet compatible with the updated macOS, resulting in the Mac not recognizing the external display in macOS Monterey, Ventura, etc. You should visit the hub's official website or check the support page to see if there is a mention of a new driver or software available, e.g. B. DisplayLink Manager Graphics Connectivity (1.6).

If necessary, install the new driver update. This should also come in handy if you find that the Detect Screens button doesn't appear on macOS Ventura.

Tips:In addition to updating the hub driver, you can also try holding down the Option key in the monitor settings to show "detect monitors" and manually select the monitor if your Mac does not recognize external monitors on the Ventura.

Change screen resolution

If you're having trouble with your external monitor not scaling well or adjusting screen resolutions in macOS Ventura, try the following steps:

Try each to see which works best for your screen.

Update your Mac

A Mac not recognizing external displays can also be caused by bugs in your current version of macOS. A newer version may have fixed the error. You may need to install the new update available for your Mac.

Yes it ismacOS Ventura does not recognize an external monitor, you can check for updates from Apple menu > System Preferences > General > Software Update.

If the external display is not working in macOS Monterey, you can find available updates in Apple menu > System Preferences > Software Update.

Disable 'Change graphics automatically'

another way to fixMacBook Pro does not recognize an external display in macOS Big Sur, Monterey or Ventura is to disable "Auto Graphics Switching" which is on by default.

On macOS Ventura, go to Apple menu > System Preferences > Battery > Options.

On macOS Monterey and Big Sur, go to Apple menu > System Preferences > Battery > Battery.

On macOS Catalina and earlier, go to Apple menu > System Preferences > Battery Saver.

macOS downgraden

If none of the solutions worked to get the "macOS Ventura external monitor not workingRegardless, you canDismantle Venturafor the previous version of macOS. It's worth noting that downgrading macOS will wipe your Mac, so you should do itBack up your Mac with Time Machinein advance.

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