The Zach wrote:
Howdy! Gray horizontal lines have started sporadically appearing about 1.5 inches from the bottom of the display of my 13-inch, 2017 MacBook Pro running OS 12.3 There's also a discoloration at the bottom of the display.
https://discussions.apple.com/content/attachment/bca07e77-d384-4828-9c6e-c5dd22d0727a•
It's a hardware issue, I suspect, rather than software as screenshots won't capture the lines. They also appear when I boot into recovery mode.
To troubleshoot, so far I've
reset the PRAM
• reset the SMC
• rebooted and unplugged all peripherals
• ran First Aid
Any idea what might be causing the problem—and how I can fix it?
Thanks!
good trouble shooting list to rule out software
If you plug into an external monitor to test—this would be insightful by comparison. If no issues externally it points to display/display assembly/projector cable/ or connection
You can try Use Apple Diagnostics to test your Mac...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.
Use Apple Diagnostics to test your Mac - Apple Support
if no insight or resolve—
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"— or see software help
Genius Bar Reservation and Apple Support Options - Apple
Outside the USA
https://locate.apple.com/country
Learn how to get your Mac fixed and how much it will cost. Mac Repair - Official Apple Support
Get your Mac ready for service - Apple Support Get your Mac ready for service - Apple Support
Check your coverage
My Support - Official Apple Support
