Question 9 The left module of the display has a flower point or a flash bar
What you see: the left side of the display has a splash or flash.
Reason: the first case: the clock frequency is too high.
The second case: the supply output voltage is not stable.
Solution: hardware Settings, clock frequency default is 25HZ, clock frequency set to 17.86 or 12.5, if the display has improved and not completely eliminated, the clock frequency can continue to lower.
If the clock frequency of the hardware setting is lowered, the flower point of the display screen is not reduced, it can be concluded that it has nothing to do with the software setting, and it is necessary to check the power supply.
The problems caused by unstable output voltage of the power supply are as follows: