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Why are there lines appearing across my computer display?
Recently I saw some weird lines on my display, and they became more prominent when I was watching videos. Once I’ve verified the cable connections and updated my graphics driver, I’ve noticed that loose cables and out-of-date graphics drivers can cause this problem. Sometimes the problem could also be a failing display panel or GPU. If you’re dealing with pc screen lines, try using another monitor or cable to determine whether the problem comes from the display itself or the graphics hardware.
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