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I encounter this issue once or twice a day when the display keep flickering and showing horizontal lines. Does Apple have any service program for this issue? Do I need the replace the display? 🥺
MacBook Pro 15″, macOS 11.3
Go step by step and test.
1. Reset PRAM: Reset NVRAM or PRAM on your Mac - Apple Support
Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone,
and recent kernel panic information.
The settings stored in NVRAM depend on your Mac and the devices that you're using with your Mac.
2. Reset SMC: How to reset the SMC of your Mac - Apple Support Choose the appropriate method.
Quote:
Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,
and other features.
3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262
To leave Safe Mode, choose “Restart” at the bottom.
Quote:
Safe mode prevents your Mac from loading certain software when it starts up, including login items,
system extensions not required by macOS,
and fonts not installed by macOS. It also does a basic check of your startup disk,
similar to using First Aid in Disk Utility.
And it deletes some system caches, including font caches and the kernel cache,
which will be created again automatically as needed.
4. Display
Try suggestions given in this article.
https://support.apple.com/guide/mac-help/if-your-display-doesnt-look-right-mchlp2906/mac
5. Contact Apple. Genius bar
Go step by step and test.
1. Reset PRAM: Reset NVRAM or PRAM on your Mac - Apple Support
Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone,
and recent kernel panic information.
The settings stored in NVRAM depend on your Mac and the devices that you're using with your Mac.
2. Reset SMC: How to reset the SMC of your Mac - Apple Support Choose the appropriate method.
Quote:
Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,
and other features.
3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262
To leave Safe Mode, choose “Restart” at the bottom.
Quote:
Safe mode prevents your Mac from loading certain software when it starts up, including login items,
system extensions not required by macOS,
and fonts not installed by macOS. It also does a basic check of your startup disk,
similar to using First Aid in Disk Utility.
And it deletes some system caches, including font caches and the kernel cache,
which will be created again automatically as needed.
4. Display
Try suggestions given in this article.
https://support.apple.com/guide/mac-help/if-your-display-doesnt-look-right-mchlp2906/mac
5. Contact Apple. Genius bar
MacBook Pro 15” 2017 display issue
