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  "path": "/threads/display-flashes-black-screen-with-thin-white-lines-not-sure-how-to-troubleshoot-further.3896763/",
  "publishedAt": "2026-06-04T17:41:30.000Z",
  "site": "https://forums.tomshardware.com",
  "tags": [
    "Displays",
    "Read more"
  ],
  "textContent": "I recently upgraded some parts in my pc and everything has been fine for a month or so. A couple days ago I woke up to this black flashing with thin white lines almost like a tic tac toe or sudoku grid. the problem persists on two different monitors and with different cords. I got so frustrated that i put all my old parts back in and it still persists on a different machine. the only change i did was get new displayport cables when upgrading my gpu. So at this point I'm stumped. I'll list what I've tried so it's easier to understand and also link a video showing the issue.\n\nWhat i tried:\nSwapping monitors/cables\nReinstalling video drivers with DDU\nRemoving new parts and reverting my build\nReinstalled windows on new old machine\nTurned off fast boot\n\nNothing has worked. If I wait long enough the screen corrects itself but it's not something I want to see every time I boot up. The most recent time it resized my desktop icons for some reason. Also it only happens on cold boot and when...\n\nRead more",
  "title": "Display flashes black screen with thin white lines. Not sure how to troubleshoot further."
}