Internal display not working
Display not working. When I connect with HDMI cable with monitor that is ok.
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Hi @tapasmahata
Switch the display back to the laptop screen and then shine a flashlight at an angle close to the laptop screen and check if you can see any images at all on the screen. They will be very faint if they are there so trying this in a darkened room may help.
If you can see images, then there's a backlight problem with the display. Either a faulty backlight power supply on the motherboard, a faulty video cable/video cable connection between the motherboard and the screen or a faulty screen
If you can't see any images, then it is either, a faulty video cable/video cable connection between the motherboard and the screen or a faulty screen.
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The internal display does not turn on, but the external display works when connected via HDMI. Sometimes the internal display turns on but then turns off again, which is very rare.
из Tuhin Nath sarkar
@tuhinnathsarkar
See the answer below.
Try moving the lid slowly back and forth yo see if you can make the display come on and go off. If you can it may be a loose or faulty video cable between the motherboard and the LCD panel
из jayeff