How To Fix MacOS Sonoma Screen Flickering/Blinking Randomly

If you’re experiencing screen flickering or blinking on your Mac running macOS Sonoma, you’re not alone.

Many users have reported similar issues with various Mac devices, including MacBook Air, MacBook Pro, and iMac.

In this blog post, we’ll explore some effective solutions to address the screen flickering problem on macOS Sonoma.

How To Fix MacOS Sonoma Screen Flickering/Blinking Randomly?

To fix macOS Sonoma screen flickering/blinking randomly, you can reset SMC, reset NVRAM or PRMA, and macOS to the latest version. Additionally, you can boot into save mode, and adjust energy saver settings.

1. Reset The System Management Controller (SMC)

Resetting the SMC can resolve issues related to power, battery, and hardware, which might be the cause of your screen flickering on macOS Sonoma.

Steps for Mac (with non-removable battery):

• Shut down your MacBook.

• Press and hold the Shift + Control + Option keys on the left side of the built-in keyboard, then press and hold the power button at the same time.
• Hold these keys and the power button for 10 seconds.
• Release all keys and the power button.
• Turn on your MacBook with the power button.

Steps for Mac (with removable battery):

• Shut down your Mac.
• Remove the battery.
• Press and hold the power button for 5 seconds.
• Put the battery back in.
• Switch your MacBook on again.

2. Reset The NVRAM Or PRAM

NVRAM (nonvolatile random-access memory) or PRAM (Parameter RAM) stores certain settings and resetting it can fix screen flickering issues.

• Shut down your Mac.
• Turn it on and immediately press Option + Command + P + R.
• Hold for 20 seconds.
• Release keys and let Mac start up.

3. Update MacOS To The Latest Version

Outdated software can lead to screen flickering issues. Ensuring that your Mac is up-to-date can fix bugs and improve system stability.

• Click on the Apple icon in the top left corner of your screen.
• Select “System Settings.”

• Click on “General.”

• Click on “Software Update.”

• If any updates are available, click “Update Now” or “Upgrade Now.”

4. Boot Into Safe Mode

Booting into Safe Mode can help determine if the issue is caused by a software or login item.

For Intel-based Macs:

• Turn off your Mac.
• Power on your Mac and immediately press and hold the Shift key.
• Release the Shift key when you see the login window.

For Apple Silicon Macs:

• Shut down your Mac.
• Press and hold the power button until the startup options window appears.
• Select your startup disk.
• Press and hold the Shift key and click “Continue in Safe Mode.”
• Release the Shift key.

5. Adjust Energy Saver Settings

Certain display and energy settings can cause screen flickering, especially if your Mac is trying to save energy.

• Click on the Apple icon in the top left corner of your screen.
• Select “System Preferences.”
• Click on “Energy Saver” or “Battery” depending on your Mac model.
• Adjust the settings, such as disabling “Automatic graphics switching” (for MacBook Pro) or modifying display sleep settings, to see if it resolves the flickering.

6. Disable True Tone And Automatic Brightness

True Tone and automatic brightness adjustments can sometimes cause screen flickering on macOS Sonoma.

• Click on the Apple icon and select “System Preferences.”
• Go to “Displays.”

• Uncheck “Automatically adjust brightness” and “True Tone.”

7. Contact Apple Support

If you’ve tried all the above solutions and your screen is still flickering, it may be time to contact Apple Support for further assistance.

They can offer professional advice and support for any issues you’re encountering with your Mac.