If one corner of an SVGA monitor has more purple tint than the rest, what is the most likely cause?

A noticeable purple tint in one corner of an SVGA monitor suggests that there may be an issue with how color signals are being transmitted to the monitor. This is commonly associated with problems related to the data cable. If the data cable connecting the monitor to the computer is damaged, improperly seated, or of poor quality, it can lead to incorrect color representation in certain areas of the display.

When the cable does not effectively transmit the signals, some colors may not be displayed accurately, resulting in a color tint that can appear in patches or corners. In this specific case, the presence of a purple tint could indicate a disruption in the signals that manage the red and blue color channels, which combine to form purple.

Other potential causes such as a monitor defect might show varying symptoms and usually would affect the entire screen rather than just specific corners. Similarly, a graphics driver issue would more likely cause broader display problems affecting overall image quality, not localized color issues. Power supply fluctuations typically affect brightness or could cause flickering, rather than altering the color balance in particular regions of the monitor.