Plug the MacBook back into its power cable.Unplug the power cord and all of its peripherals.Reset Your System Management Controller (SMC) If the lines do not appear in the screenshot, you have a display problem.If the lines appear in the screenshot, you likely have a GPU problem.It’s easy to do, too. Take a screenshot of the affected area to determine where the issue lies. Take a Screenshotįirst, you’ll want to know if the horizontal lines are a graphics problem or a display problem. At the very least, the next tip will help you explain the issue to the repair staff. Try these troubleshooting tips before taking your MacBook in for service. If you’re using an external display, shut your MacBook and work on your external display when possible.Keep your MacBook cool by running a fan behind it, making sure it’s adequately ventilated, and also give it a break from time to time.So when the system is running hard the heat can boil up cooking the T-CON board.” How Can I Mitigate the Black Lines in the Meantime?
#WHY HAS MY MAC DESKTOP SCREEN GONE DARK SERIES#
“The design of this series places part of the display’s logic within the main case placed just above the heat transfer fins of the heat sink. Otherwise, heavy usage and heat alone are enough to cause the black lines.ĭan goes on to say that this is now known as a T-CON board issue. It’s possible that your Mac’s fans have failed, or the vents have been blocked due to dust or other physical obstructions. If you use your MacBook for work, video editing, etc., for long periods, you’ll likely notice these lines rearing their ugly heads later in the day after the device gets hot.Īccording to Dan from iFixit, on 13-inch and 15-inch MacBooks, the T-CON board that sits between the heat exchangers within the main body can overheat, damaging it.
Your MacBook might not show these black lines when you first boot it up – that’s because the common factor across all MacBooks displaying these black horizontal lines is heat. Why Does My MacBook Have Black Horizontal Lines on the Display?
But first, it’s important to understand what’s causing the issue to begin with. Yes, your screen or other internal components might be failing.īut before you get too upset, there are standard troubleshooting practices to try, which we’ll discuss below. Unfortunately, these black lines may be an early warning sign of faulty components that Apple is not yet fixing or replacing for free.
0 kommentar(er)
