Welcome guest. Before posting on our computer help forum, you must register. Click here it's easy and free.

Author Topic: Monitor showing "No Sync" or "Signal Out of Range"  (Read 7290 times)

0 Members and 1 Guest are viewing this topic.

jbarnes

    Topic Starter


    Greenhorn

    Monitor showing "No Sync" or "Signal Out of Range"
    « on: October 15, 2009, 01:38:12 PM »
    I have an HP Pavilion desktop computer that is about 4 yrs. old and am running XP with SP3. I recently upgraded the drivers for my Diamond Radeon X1050 video card. I have a flat panel screen (I think it's an Acer - inherited it from my mother) - model no. is L17NCDT if that helps.

    While working in a particular application like Word or Excel, or playing a game, all of a sudden the monitor goes blank and shows either "No Sync" or "Signal Out of Range." Since I can't see anything when this happens, I have to manually turn the computer off and then back on.

    Any ideas why this is happening and what I can do to fix this? It gets really irritating since I work from home and may have several windows open at once, then I have to start all over again.

    Thanks!

    Allan

    • Moderator

    • Mastermind
    • Thanked: 1234
    • Experience: Guru
    • OS: Windows 10
    Re: Monitor showing "No Sync" or "Signal Out of Range"
    « Reply #1 on: October 15, 2009, 01:39:47 PM »
    I start by rolling back the driver if I were you.

    jbarnes

      Topic Starter


      Greenhorn

      Re: Monitor showing "No Sync" or "Signal Out of Range"
      « Reply #2 on: October 15, 2009, 01:44:25 PM »
      Thought about that, but not sure how.

      jbarnes

        Topic Starter


        Greenhorn

        Re: Monitor showing "No Sync" or "Signal Out of Range"
        « Reply #3 on: October 15, 2009, 01:46:36 PM »
        Just found the "Roll Back Driver" button. I'll give that a try.

        Allan

        • Moderator

        • Mastermind
        • Thanked: 1234
        • Experience: Guru
        • OS: Windows 10
        Re: Monitor showing "No Sync" or "Signal Out of Range"
        « Reply #4 on: October 15, 2009, 01:47:57 PM »
        Go to Device Manager and double-click on the display adapter - video card entry. Driver Tab - Roll Back

        jbarnes

          Topic Starter


          Greenhorn

          Re: Monitor showing "No Sync" or "Signal Out of Range"
          « Reply #5 on: October 15, 2009, 08:22:52 PM »
          Rolled back the driver. While playing a game, the screen went blank and came back with a bunch of columns filled with pixels. So now it's even worse than before. Any other suggestions?

          Broni


            Mastermind
          • Kraków my love :)
          • Thanked: 614
            • Computer Help Forum
          • Computer: Specs
          • Experience: Experienced
          • OS: Windows 8
          Re: Monitor showing "No Sync" or "Signal Out of Range"
          « Reply #6 on: October 15, 2009, 08:29:40 PM »
          Video card, itself may be overheating, or going bad.

          jbarnes

            Topic Starter


            Greenhorn

            Re: Monitor showing "No Sync" or "Signal Out of Range"
            « Reply #7 on: October 15, 2009, 08:38:44 PM »
            Thanks for tip on overheating. That rings a bell as I hear a fan kick in and run loudly sometimes, especially when playing games. I looked at the topic about temperature and found this URL:

            http://www.cpuid.com/hwmonitor.php

            I'll run this on my desktop tomorrow and see what happens. If the video card is indeed overheating, any suggestions?

            Geek-9pm


              Mastermind
            • Geek After Dark
            • Thanked: 1023
              • Gekk9pm bnlog
            • Certifications: List
            • Computer: Specs
            • Experience: Expert
            • OS: Windows 10
            Re: Monitor showing "No Sync" or "Signal Out of Range"
            « Reply #8 on: October 15, 2009, 08:41:21 PM »
            He can remove the video driver in safe mode.
            Reboot and install the driver again. Should reset the video to default.

            Broni


              Mastermind
            • Kraków my love :)
            • Thanked: 614
              • Computer Help Forum
            • Computer: Specs
            • Experience: Experienced
            • OS: Windows 8
            Re: Monitor showing "No Sync" or "Signal Out of Range"
            « Reply #9 on: October 15, 2009, 08:47:47 PM »
            Open the case (while computer off) and give it a good cleaning with a can of compressed air.