# TSG: Pixel noise on display ## Photo Examples ![](/files/caQiedm2l1p1yLocnF7P) ![](/files/V67ETU1EiFYXTku73t7X) ![](/files/FVWMukk4jfzlIeS2Sdt0) ## Video examples This video gives an example () with red pixels. ## Appearance * This manifests as certain pixels lighting up and flickering * Even if the input signal isn't changing you may see the pixels rapidly flicker * Usually it will be a single color. It very often happens with the GREEN component of a pixel. But can happen with RED (LESS COMMON) or BLUE (UNCOMMON). * You may notice that the pixels light up in vertical or horizontal stripes * This problem is not related to "STUCK PIXELS". In this case, which pixels light up is dynamic and depends on what is shown on the display. ### Sources of the problem * The ultimate source of the problem can be: * The display panel * The cabling (cables & ports) * The GPU that is sending the display signal ## Cabling * This problem seems to be associated with the connection to the display and is often a cabling issue: * Sometimes the cable is bad * Sometimes the cable is sagging or stretched too tightly and can cause this problem as it puts pressure on the ports * Sometimes it is due to the ports the cable is using * It can occur with HDMI, DisplayPort, and USB-C cables/ports ## Try * Using different cables * Use a different port * Use a different kind of port (for example, switch from HDMI to Displayport) * Test with another computer * Checking the refresh rate * Test with a lower resolution * If you are unable to resolve, you should contact your manufacturer's support --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sevenpens.com/drawtab/troubleshoot/tsg-pixel-noise-on-display.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.