Why is everything flickering on the screen (TFT)?

Question

Iron

Why is everything flickering on the screen (TFT)? there is a horizontal, not very noticeable distortion with thin lines, everything is readable but unpleasantly annoying, I tried to change the motors, the VGA cord, it doesn’t help, rather, something with the vidyuhi? but what? (built-in video card) who can advise, the resolution of 60 and 75 Hz was set the same

Answer 1

very similar to the poor power supply of the computer, I had this with a monitor with an external power supply, the power supply was non-native, it turned out to be weak, changed to a more powerful one and everything became fine

Answer 2

Few data. You need to know the connection type, monitor matrix, resolution (it is not measured in hertz).
Presumably you plugged the monitor in via a VGA cable and set it to high resolution. try switching to DVI or HDMI.

Answer 3

Try (just for testing) to connect the monitor through an adapter or extension cable without grounding. If the interference disappears, you can remember the old saying - when zero looks like a phase, inflate an electrician with an infection!