Attach an external monitor to the laptop's HDMI port and check if it occurs on it as well.
Even a TV can be used as an external monitor as long as it has HDMI inputs and you have the appropriate cable to connect the two together.
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Don't forget to press the appropriate key on the top row of the keyboard to switch between viewing the laptop screen, the external monitor or both screens on together.
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Don't forget to press the appropriate key on the top row of the keyboard to switch between viewing the laptop screen only, the external monitor only or both screens on together.
''If it works OK on the external monitor'' it may be a problem with cable to the laptop screen or the screen itself.
''If it is doing the same on the external monitor'' try starting the laptop in [https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10|safe mode] (assuming you have Win 10) and check if it still occurs.
Hi @hami27 ,
Attach an external monitor to the laptop's HDMI port and check if it occurs on it as well.
Even a TV can be used as an external monitor as long as it has HDMI inputs and you have the appropriate cable to connect the two together.
Don't forget to press the appropriate key on the top row of the keyboard to switch between viewing the laptop screen, the external monitor or both screens on together.
''If it works OK on the external monitor'' it may be a problem with cable to the laptop screen or the screen itself.
''If it is doing the same on the external monitor'' try starting the laptop in [https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10|safe mode] (assuming you have Win 10) and check if it still occurs.
If not you have a driver error.