2/26/2023 0 Comments Why is my laptop screen so dim![]() ![]() Press F2 (with the fn key pressed and not pressed) to increase the screen brightness setting.Ĥ. Try known-good power outlet, power adapter, and power cord.ģ. Apple suggest:" No display or dim display, but computer appears to operate correctly and has video operating on external display (display is fine after startup, but after a few seconds no display or dim display)Ģ. If it does not, then you are having GPU trouble on your computer. If so, then it is the inverter/backlight circuit of your computer. Try to connect an external display and see if that works. ![]() Since you already replaced the LCD with a working one, it is possible that this is caused by a bad inverter. So this answer is a general answer and hopefully the Mac Guru's can help you out further. Don, first I must admit that I am not a Mac person. ![]()
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