A:Answer What resolution do you have your computer set to output? The LG 24 Inch Class HD Smart TV (23.6'' Diag), Model # 24LM520S-WU has a native resolution of 1366 x 768. As instructed on page 12 of the owner's manual, "In PC mode, there may be noise associated with the resolution, vertical pattern, contrast, or brightness. If noise is present, change the PC output to another resolution, change the refresh rate to another rate, or adjust the brightness and contrast on the [PICTURE] menu until the picture is clear...^IFV
