Windows 8 and 8.1 Forums


Monitor doesn't detect that computer woke up.

  1. #1


    Posts : 11
    win 8.1

    Monitor doesn't detect that computer woke up.


    So yeah, when I wake my computer up out of sleep mode, sometimes the monitor will detect that it needs to wake up
    However, most of the time, I have to unplug the DVI cable and plug it back in. When I do so, I can hear the Windows
    noise indicator that lets me know that something was disconnected and something was connected.
    Anyone experience this issue before? Any suggestions?


    ASRock Z77 Extreme4

    Sapphire Radeon 7870
    Running on 64-bit


    I have updated drivers for my video card, this problem seemed to only happen in Win8/8.1 I didn't have the problem in Win7

    I had the company replace my video card, but I still seem to have this problem.
    I tried using another PCI-E port on the motherboard and the problem was not resolved.
    When I plug my monitor into the integraded DVI port of the motherboard, I don't seem to have this problem.

    I just can't figure out what is actually wrong with it.

      My System SpecsSystem Spec

  2. #2


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Most of the time, it is the Video driver causing the issue. Uninstall the driver for the Video Display, and then reboot and let windows install the default driver. Also check the Bios to make sure that it is up to date. Windows 8.x has had a lot of random issues, with most being Video Display issues.

    I would suggest not allowing the display to be placed into sleep, just set to blank the screen. If you are leaving the machine on for long periods, just turn off the monitor. When you get back to the computer, power it back on with the power button.
      My System SpecsSystem Spec

  3. #3


    Posts : 11
    win 8.1


    How do I let windows install the default driver?
      My System SpecsSystem Spec

  4. #4


    Posts : 2,627
    win8.1.1 enterprise


    Quote Originally Posted by thelittlelim View Post
    How do I let windows install the default driver?
    just reboot windows after you uninstall the driver
      My System SpecsSystem Spec

  5. #5


    Posts : 11
    win 8.1


    uninstalled driver, rebooted, not sure if windows installed any other driver, but I'm still having the same problem.
      My System SpecsSystem Spec

  6. #6


    Posts : 2,627
    win8.1.1 enterprise


    did you get the 64bit win8.1 driver from the download section here, for you video card and install it .
    http://www.sapphiretech.com/presenta...lid=1&pid=1487#
      My System SpecsSystem Spec

  7. #7


    Posts : 11
    win 8.1


    So now I'm confused, I was told to uninstall it, and now you're suggesting I install it?
      My System SpecsSystem Spec

  8. #8


    Posts : 2,627
    win8.1.1 enterprise


    Quote Originally Posted by thelittlelim View Post
    So now I'm confused, I was told to uninstall it, and now you're suggesting I install it?
    yeah, this process is intended to fix[maybe]something in the original driver install ,by process of elimination
      My System SpecsSystem Spec

  9. #9


    Posts : 11
    win 8.1


    I've done a clean install of windows and I'm still having problems with this.
      My System SpecsSystem Spec

  10. #10


    Posts : 2,627
    win8.1.1 enterprise


    ok,when you done the clean install did you go the manufacture web site to get the latest device drivers for the computer ,or are you just using the ones windows uses when it installs
      My System SpecsSystem Spec

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Monitor doesn't detect that computer woke up.
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