Question VGA Drop few times

Aug 22, 2021
3
0
10
Anyone can help me with my VGA, the VGA sometimes give me drop to zero then back to normal again.
it always happens and don't know why

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Using laptop asus A456U (X456URK)
intel i5 7200U @2.5ghz 4 cpu
nvidia geforce 930mx 2gb
windows 10
SSD 256gb
HDD 1tb
Ram 12gb
directx 12

please help, is there something wrong?