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I have Mac book pro 13 inch of 2018, I have updated to Big Sur 11.5, for last couple of days I found if I use my MacBook for 4-5 hrs , horizontal lines appear on my top portion of the screen. What is the reason ? how to fix it? rather to resolve?
MacBook Pro 13″, macOS 11.4
Hi,
Try to check your MacBook Pro with Apple Diagnostics if it reports graphics or display hardware related error.
Use Apple Diagnostics to test your Mac - Apple Support
Apple Diagnostics reference codes - Apple Support
If it reports no error, it's caused by software bug.
Hi,
Try to check your MacBook Pro with Apple Diagnostics if it reports graphics or display hardware related error.
Use Apple Diagnostics to test your Mac - Apple Support
Apple Diagnostics reference codes - Apple Support
If it reports no error, it's caused by software bug.
horizontal lines after 4-5hrs use
