Intense heat has never been welcomed by electronic devices. In batteries it causes degradation, in processors it can give errors, and as a whole it is an element that must be actively expelled from equipment or adjusted so that it does not overheat. This is exactly the situation experienced by the Pro Display XDR and the mini-LED display of the MacBook Pro 2021.

Maximum brightness subject to reasonable temperature

An important feature of the mini-LED displays in the 2021 MacBook Pro, which we call Liquid Retina XDR, and the Apple Pro Display XDR, is their amount of brightness. According to a new support document released by Apple, however, they also share that at very high temperatures, this brightness is limited to prevent damage to components.

Apple explains that if we see an exclamation point or a screen symbol appear next to an exclamation point in the menu bar or in the View menu of the control center on these computers, this indicates that the screen is in low power mode and using higher brightness. limit. The document goes on to explain that this can happen if the ambient temperature is high and we play content at very high brightness for a long time.

This situation is by no means an error. Perhaps many of us will have noticed that the iPad Pro also limits the brightness of the screen when it heats up excessively. This is something they do, however, without showing direct notice of the situation. Here on the Mac, Apple clarifies that the display goes into low-power, limited-brightness mode so we’re aware of how heat affects equipment.

This is not an error, it is a measure to protect the integrity of the hardware.

As we have already said, this is not an error, because as soon as the screen cools down, it will return to normal. Apple offers a series of resources that we can try:

On MacBook Pro with Liquid Retina XDR display, close all applications that may be consuming significant system resources. Use Apple XDR Display or Pro Display XDR reference mode unless your current workflow requires a specific reference mode. Lower the ambient room temperature. Close or hide any window with HDR content. From the Apple menu, tap Sleep and let your Mac cool down for 5-10 minutes before resuming your activity.

Apple also advises that if the ambient temperature is below 25 degrees and the screen continues to display this warning, it is best to contact technical support directly.

It is clear that screens, like other much less visible components, are very sensitive to heat. Heat that may come from the machine itself and in some environments cannot be dissipated effectively. If this is the situation, a simple warning will indicate that we must take some simple precautions to continue enjoying the maximum brightness that these screens can offer.

Picture | Aaditya Ailawadhi