Screen blacks out before login

By Kazaf
Sep 18, 2012
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  1. My screen blacks out today when I tried to turn on my computer, there is a signal "DSUB" at the right upper coner, I can't even press F8 to enter the save mode, and I tried to reboot my PC but still doesnt work... is there anyone can help?
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Bad video card, video driver or hard drive... Did you download or install anything right before this problem showed up? Laptop or desktop?

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