According to Apple, the brightness of Pro Display XDR and 2021 MacBook Pro will be limited in high temperature environments

Apple today shared a new support document that outlines a warning symbol that appears on MacBook Pros with Liquid Retina XDR Display or Pro Display XDR when the screen is running too hot, causing brightness issues. reduce.

Apple explains that a warning symbol in the menu bar or the Display menu in Control Center on a 2021 MacBook Pro or Apple Pro Display XDR means the display is in low-power mode and "using limited brightness".

This can occur if the ambient temperature of the room is high and bright content is played for a long time. Apple offers several solutions for users who see the warning, including lowering the room temperature and temporarily putting their Mac to sleep to cool it down.

• On MacBook Pro with Liquid Retina XDR display, quit any application that may be consuming a lot of system resources.
• Use Apple XDR Display or Pro Display XDR reference mode unless your current workflow requires a specific reference mode.
• Reduce the ambient temperature of the room.
• Close or hide any windows containing HDR content.
• Choose Apple menu  > Sleep to put your Mac to sleep. Let your monitor cool down for 5-10 minutes, then press any key on your keyboard to wake your Mac.

Apple says users who continue to see this issue when the room's ambient temperature is below 77 degrees Fahrenheit should contact Apple Support for assistance.

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