Saturday, Feb 05, 2022, 13:11 Mac: Hardware

Why Is My 2021 MacBook Pro's Display Not Working? MacBook Pro & Pro XDR Displays Affected By Summer Temperatures

The Liquid Retina XDR display of the MacBook Pro 2021 has impressive brightness levels and very good contrast. This applies even more so to Apple's high-end Pro Display XDR eternal monitor. However, there are some conditions under which the devices no longer display content at the same level of quality their users have grown accustomed to – rather with increased darkness instead. The System Preferences or device settings are of no use in increasing the brightness in these circumstances. The darkening is the result of a bottleneck built in by Apple in an attempt to protect the monitors and notebooks from defects.

Displays Throttle Brightness When Too Warm
MacBook Pro (2021) and Pro XDR displays notify users of automatically reduced brightness via a warning symbol in the menu bar in macOS and in the operating system's control center. As a number of users recently discovered the hidden "feature" over the last few weeks, Apple recently published a support document explaining the matter. The document states that the displays switch to low power mode in hot environments – which then automatically lowers the display brightness. Apple details that environmental temperatures of more than 77° Fahrenheit (25° Celsius) along with playback of very bright content such as HDR videos as triggers for the displays' low power mode.



Lower Room Temperature & Close Apps
In the support document, Apple also describes several measures that can be taken to remedy low darkness levels brought about in an attempt to protect MacBook Pro (2021) and Pro XDR displays from temperature-caused defects. If possible, users should lower the room temperature if possible (or move the device to an environment with a lower room temperature). Users are then recommended to close apps not in use. Activating the display's reference mode could also be helpful, however, this option is only available to owners of Apple's high-end Pro Display XDR external monitor. Additionally, users should also close or at least minimize all windows displaying HDR content. Finally, Apple recommends putting the device to sleep and allowing it to cool off for 5 to 10 minutes before reactivating it. When the problem also arises around temperatures under 77° Fahrenheit (25° Celsius), customers should contact Apple.

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