Lenovo LCD uses DVI interface to display bright spots.

Oh, the monitor has a DVI-D interface, and the graphics card has a DVI-I interface. DVI-I and DVI-D are two specifications of DVI. DVI-D can only receive digital signals, while DVI-I is a digitally compatible analog signal.

Irregular bright spots can reduce the brightness and contrast of LCD. Don't use too high brightness and contrast, about 60. Since there is nothing wrong with VGA mode, it is a DVI display problem. If the setting is incorrect, bright spots or water marks will also appear.