Fix macOS Ventura: Second Monitor/External Display not working

Fix macOS Ventura: Second Monitor/External Display not working :macOS Ventura, the latest version of the Mac operating system, is here. While it brings with it a host of new features and improvements, it also comes with its fair share of bugs. One such bug is that some users are reporting that their second monitor or external display is not working properly with macOS Ventura. If you’re one of the affected users, don’t worry — there are a few things you can try to fix the problem. In this blog post, we’ll walk you through a few troubleshooting steps that may help get your second monitor or external display up and running again on macOS Ventura.

Symptoms of the problem

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If you’re experiencing issues with your second monitor or external display not working with macOS Ventura, there are a few things you can try to fix the problem.

First, make sure that both your computer and the display are powered on and connected properly. If everything is plugged in and turned on, but you’re still not seeing anything on the screen, try restarting your computer.

If that doesn’t work, open System Preferences and go to Displays. Make sure that the “Show displays in menu bar” box is checked. Then click the Arrangement tab and see if there’s anything listed under ” Mirror Displays.” If there is, uncheck that box.

Next, try resetting the display’s PRAM or SMC. To do this, shut down your computer and unplug all external devices except for the keyboard, mouse, and power cord. Turn on your computer and hold down Command + Option + P + R until you hear the startup chime three times (this may take a while). Then let go of the keys and turn off your computer again. Plug everything back in and turn it on to see if the issue is resolved.

If you’re still having trouble, it’s possible that there’s an issue with your graphics card or drivers. Try updating your drivers or reinstalling them to see if that helps. You can also try using a different cable to connect your monitor to your computer. DisplayPort cables tend to work perfectly.

Fix macOS Ventura cannot detect Second Monitor/External Display

If you’re using a Macbook with macOS Ventura and you can’t seem to get your external display or second monitor to work, don’t despair. There are a few potential fixes for this issue.

First, make sure that your external display is properly plugged in to your Macbook. If it’s not, then plug it in and try again.

Fix macOS Ventura cannot detect Second Monitor/External Display

If your external display is plugged in but still isn’t working, try restarting your computer. Sometimes a simple reboot can fix the issue.

If neither of those solutions work, try resetting the NVRAM on your Macbook. This will reset some of the low-level settings on your computer, which may fix the issue with your external display.

Finally, if none of those solutions work, you may need to take your computer to an Apple Store or authorized service provider for further diagnosis and assistance.

FIX 1: Try the Basic USB C and HDMI Troubleshooting

If your Macbook is not displaying on your external monitor, there are a few basic troubleshooting steps you can try:

-Make sure that both the USB C/Thunderbolt 3 cable and the HDMI cable are firmly plugged in to your Macbook and the external display.
-Try a different USB C/Thunderbolt 3 cable or a different HDMI cable.
-Restart your computer and try again.
-Check to see if there are any firmware updates available for your Macbook or your external display.
-Make sure that your external display is powered on and set to the correct input.

FIX 2: Force Connect External Display

If you’re still having trouble getting your external display to work after trying the first fix, you may need to force connect it. To do this, open System Preferences and go to Displays. Next, click on the Arrangement tab and check the box next to “Mirror Displays.” Finally, click on the Option button and select “Built-in LCD” from the drop-down menu.

Now, try connecting your external display again. If it still doesn’t work, move on to the next fix.

FIX 3: Connect Monitor after opening Display Settings

If your second monitor or external display isn’t working after opening Display Settings, you can try connecting it after closing the settings window. This should fix the problem and allow you to use your second monitor or external display as normal.

FIX 4: Tweak Display Resolution Settings

If your external display isn’t working after upgrading to macOS Ventura, it’s likely due to a change in the display resolution settings. To fix this, simply go to System Preferences > Displays and select a lower resolution for your external display. This should resolve the issue and allow you to use your external display as usual.

FIX 5: Downgrade DisplayPort Version

If you are still using an older DisplayPort version, you may need to downgrade in order to get your second monitor or external display to work correctly with macOS Ventura. To do this, simply connect your computer to the display using a Mini DisplayPort cable (or equivalent), and then follow these steps:

1. Open System Preferences and go to the Displays pane.
2. Select “Scaled” from the Resolution drop-down menu.
3. Click on the Arrangement tab and uncheck “Mirror Displays”.
4. Quit System Preferences and restart your computer.

After following these steps, your second monitor or external display should work correctly with macOS Ventura.

FIX 6: Reboot to Safe Mode

If your computer is having trouble with a recently installed driver or piece of software, you can try rebooting into Safe Mode. This will disable all non-essential drivers and programs, allowing you to troubleshoot the issue. To reboot into Safe Mode, hold down the Shift key while clicking the Restart button in the Start menu. Once your computer has restarted, you’ll see the Safe Mode logo in the corner of your screen.

FIX 7: Use an HDMI to USB-C cable to try

If your computer has a USB-C port, you can use an HDMI to USB-C cable to connect your second monitor or external display. This is the most direct connection and will often fix any issues you’re having with your second monitor or external display.

To connect your HDMI to USB-C cable, simply plug one end of the cable into your display’s HDMI port and the other end into your computer’s USB-C port. Once everything is plugged in, you should see your second monitor or external display turn on and begin working properly.

FIX 8: Reset NVRAM

If your Mac’s display is still not working after trying the first seven fixes, you may need to reset your Mac’s NVRAM. NVRAM (Non-Volatile Random-Access Memory) is a small amount of memory that your Mac uses to store certain settings and access them quickly. If this memory becomes corrupt, it can cause problems with your Mac’s display.

To reset your Mac’s NVRAM:

1. Shut down your Mac.
2. Press and hold the power button for at least 20 seconds.
3. Wait a few seconds, then press the power button again to turn on your Mac.
4. Test to see if your Mac’s display is working properly.

If resetting your NVRAM doesn’t fix the problem, you may need to take more drastic measures, such as reinstalling macOS or taking your Mac to an Apple Store or authorized service provider for further diagnosis and repair.

FIX 9: Rollback to Beta 4

If you’re still having issues with your second monitor or external display not working in macOS Ventura, you can try rolling back to Beta 4. This may not be a permanent fix, but it may help resolve the issue in the meantime.

To rollback to Beta 4, simply download the Beta 4 installer from Apple’s developer website and run it on your Mac. Once it’s installed, restart your computer and see if the issue has been resolved. If not, you can always try reinstalling the latest beta version or wait for the next public release of macOS Ventura.

FIX 10: Reinstall macOS Ventura

If your second monitor or external display isn’t working in macOS Ventura, you may need to reinstall the operating system. This can be done by booting from a macOS Ventura installation drive or USB flash drive.

Once you’ve booted from the installation drive, follow the prompts to reinstall macOS Ventura. Be sure to select the option to erase the disk and install macOS Ventura. This will wipe your hard drive and install a fresh copy of the operating system.

After the installation is complete, reboot your computer and try connecting your second monitor or external display again. Hopefully, this will fix the issue and you’ll be able to use your second monitor or external display as normal.

How to check if your Mac supports an external display

If you’re running into issues with your second monitor or external display not working with your Mac, there are a few things you can check to see if it’s a compatible model. First, you’ll want to make sure that your display is turned on and connected to your Mac via the appropriate cable.

Once that’s confirmed, open up System Preferences and navigate to the Displays preference pane. Here, you should see your external display listed under the “Scaled” resolutions. If it’s not appearing here, it’s likely that your Mac doesn’t support the resolution of the display.

Finally, head over to Apple’s website and check out the list of all Macs that support an external display. If your model isn’t listed here, then it, unfortunately, won’t work with an external display.

The best way to connect your Mac to an external display

There are a few different ways that you can connect your Mac to an external display. The best way to do this is with a Mini DisplayPort or Thunderbolt cable.

If you have a newer Mac, you can also use the HDMI port to connect to an external display. To do this, you will need an HDMI cable and an adapter.

If you’re using an older Mac, you can still connect to an external display, but you will need to use a DVI cable.

Tips for optimizing your display

If you’re having trouble getting your second monitor or external display to work with macOS Ventura, there are a few things you can try.

First, make sure that both displays are powered on and connected to the Mac via the appropriate cables. If you’re using an HDMI cable, for example, be sure to connect it to the HDMI port on both the Mac and the display.

Next, check the System Preferences to see if both displays are detected. Go to apple  System Preferences  Displays. If only one display is listed here, click on the Detect Displays button.

Once both displays are detected, you can adjust the resolution and other settings for each one individually. To do this, click on the Arrangement tab at the top of the Displays preference pane. Here you can drag and drop each display to rearrange them, or use the Mirror Display options to duplicate your main display onto the secondary display.

If you’re still having trouble getting your second monitor or external display to work with macOS Ventura, contact Apple Support for more help.