Mac Mirroring Issues

Note: The steps may vary slightly based on your macOS version and hardware configuration.

1. Check Hardware Setup:

Ensure that all three monitors are properly connected to your Mac and powered on.

2. Access Display Settings:

Click the Apple menu in the top-left corner of the screen and select "System Preferences."

Then, click on "Displays."

3. Identify Monitors:

In the Displays preferences window, you'll see representations of your monitors. They'll be

numbered and labeled (e.g., Display 1, Display 2, Display 3).

4. Arrange Monitors:

Drag and drop the monitor icons within the Displays preferences window to match the

physical layout of your screens. You can position them vertically or horizontally as desired.

5. Adjust Resolution and Arrangement:

Click on each monitor icon to access its settings. You can adjust the resolution and

arrangement of the displays using the options provided. Ensure the "Mirror Displays" box is

unchecked for extended displays.

6. Duplicate Displays:

To duplicate your screen on all monitors, check the "Mirror Displays" box for the monitors you

want to duplicate. This will show the same content on all monitors.

7. Extend Displays:

If you want to extend your desktop across all three monitors, make sure the "Mirror Displays"

box is unchecked for each monitor. This mode allows you to have separate content on each

screen.

8. Adjust Display Scaling (if available):

Some versions of macOS might provide options to adjust display scaling. If available, you can

adjust text and interface size to your preference.

9. Test and Fine-Tune:

After arranging and adjusting the settings, drag windows across the screens and launch

applications to ensure everything works as expected.

10. Save Changes and Enjoy:

Once you're satisfied with the arrangement and settings, close the Displays preferences

window. Your screens should now be configured according to your desired arrangement.

Remember that macOS versions and hardware configurations can lead to differences in these

steps. If you're using multiple screens with different resolutions or orientations, you may

encounter specific adjustments or requirements.

These troubleshooting steps cover a wide range of potential issues. If you're not comfortable

performing certain steps or the issue persists, please call the Helpdesk at x4444 or enter a

service ticket at the following URL: