Lines on a PC screen can be caused by several factors, including loose or damaged display cables, outdated or corrupt graphics drivers, or issues with the GPU. Sometimes, software glitches or incorrect resolution settings can also create temporary lines. However, persistent vertical or horizontal lines often indicate hardware problems, such as a failing LCD panel or graphics card. Identifying whether the issue is software or hardware-related is key to applying the right fix. Visit Now: https://devicefixes.com/blog/pc-screen-lines/