You may experience distorted images or other content on your Apple Mac screen. This problem has many causes, including a bad connection between your Mac and Display, faulty software or drivers, or faulty hardware. By following this guide, you will be able to fix this type of problem yourself by using some troubleshooting steps.
Make Sure Your Monitor Is Connected to My Mac
You must ensure that the monitor is connected correctly and powered when using a Mac connected to an external monitor. When your monitor is disconnected, you may feel like you do not have a mac.
- Look for visible damage on all cables and connectors. Replace them if they are damaged.
- Ensure that one end of the power cable is firmly attached to the back panel of the monitor and the other end is plugged into the power outlet.
- Video cables should be connected to a video source device, such as a computer, gaming console, media player, etc., with one end of the cable attached to the monitor and the other attached to the video source device.
- Check that all connectors are firmly plugged in if the monitor has an external power supply:
- Connectors are attached to the monitor.
- An additional connector is connected to the power socket.
- Occasionally, a third connector is attached to the power supply itself.
- A variety of connections can connect monitors to video source devices. The most common ones are:
- HDMI
- DVI
- VGA
- DisplayPort
- Ensure that the monitor is switched on and that the input source is set to the video corresponding to the type of connection. There are a variety of brands and models available. If you are unsure how to do this, please refer to the monitor documentation.
You may also be interested in:
- How to connect macbook to ultra wide monitor
- Macbook Pro Compatibility with monitors
- How to Choose External Monitor for Macbook Pro
Check Display Menu Resolution On a Mac
Make sure your monitor is selected on your Mac and viewed through your Mac. You can do this by selecting the default display on your Mac.
- You can do this by selecting Apple Menu > System Preferences.
- Click on Displays.
- Change the resolution by clicking on Scaled or placing a dot next to the display default.
Reset NVRAM On a Mac
You could fix the problem by resetting NVRAM if you selected the incorrect configuration.
- Choose Apple Menu from the top of the screen, then select Shutdown.
- Please wait for your computer to shut down, then turn it off.
- Restart your Mac by pressing the power button.
- Press and hold down the Options, Command ⌘, P, and R keys simultaneously.
- It would be best to release the keys after the second time your Mac plays the sound.
- If there is no startup sound, release the keys after the Apple logo appears a second time.
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