Windows 10: Connecting second monitor causes lockup. Solved

  1. Posts : 5
    Windows 10 x64 1607 (Build 14393.1715)
       10 Oct 2017 #1

    Connecting second monitor causes lockup.

    Howdy folks,

    Scenario: I have an old TV right next to my monitor (which is a new smart TV) so I can be entertained while I work at home. Recently, I decided to cut the cord and ditch cable. In its place, I wanted to connect the old TV to my computer and use it to watch media of my choosing as I work.

    So, I bought an iMeshbean HDMI to 3RCA AV CVBS Composite & S-Video R-L Audio Converter Adapter Upscaler. I unboxed it and plugged it in and it worked from the get-go with no hassles. No drivers supplied or required. The1080 only has one HDMI out, so I used a DVI to HDMI adapter to make the connection to the converter.

    A few weeks later, I had some issues with my USB controllers acting up and, after following many suggested fixes, I had changed a lot of registry settings, Windows settings, device settings, BIOS settings, etc, etc, etc.

    At some point, my system began failing to boot. It would just hang after POST, black screen forever as the HD light flickered occasionally. After much gnashing of teeth, I eventually tried disconnecting the second monitor and everything booted up fine. So I began testing.

    When there's no source plugged into the converter, it displays color bars with a "No Signal" message on the old TV. If the old TV has no source, it just displays a black screen.

    I'll boot up with the main monitor connected. After Windows has fully finished loading, I try plugging in the second monitor by way of the converter. My main monitor always goes to a blank screen with a "No Signal" message. The second monitor doesn't change, still displaying the color bars.

    The HD light blinks furiously for several minutes but then slows down to about a slow heartbeat fairly shortly. Neither video signal ever comes back. If I wait another 5 minutes or so, the second monitor goes gray, not black, so it's getting a signal.

    If I wait another 5 minutes, the lights on my mouse and keyboard go out. Another 5 minutes and they come back on. Another 5 minutes and the color bars return. And that's the end of the show. No other feedback after that series of events. Before the problems, the second monitor would always snap into shape within a second of being plugged in.

    During limbo, I've tried typing various things to provoke a response. Ctrl-ALt-Del, Alt-F4, Alt-Tab, etc. Nothing seems to have an effect. I have my power button configured to trigger a soft shutdown. On rare occasions, if I press it early, the system will shut itself down. Most of the time, it doesn't.

    So, I tried booting up with nothing but the second monitor plugged in. Works fine. When I go to add my main monitor, the same sequence occurs. Each monitor works fine on its own, but when both are connected, the system chokes.

    I figured some dev config file or reg entry got corrupted, so I went to the Device Manager, enabled Hidden Device view, and uninstalled the grayed-out PnP Monitor entries and the HDMI to AV-0 audio device entries in the hopes that Windows would attempt to reacquire clean device info. Didn't work.

    Things I've tried so far...

    Power cycle the PC and the converter.
    Switched out HDMI cables with newer, higher rated ones (NAXA HDMI 1.4 compliant cable).
    Uninstalled unused, but still listed, monitor drivers.
    Cleared CMOS.
    Reviewed BIOS settings.
    Ran Windows Update and updated Video Card drivers.
    Checked that I had the latest BIOS update.

    Any thoughts?
      My ComputerSystem Spec

  2. Posts : 9,045
    Windows 10 Pro x64 Build 1803
       10 Oct 2017 #2

    Hi Raybo58.

    If I read your posting correctly, originally this all worked fine, then you had the USB issues and from that point on plugging a second monitor in causes issues.

    Before trying diagnostic procedures I always recommend create a backup of your data off machine, create an Image with a tool like Macrium Reflect and have bootable media that matches your current Windows environment.

    Backup and Restore with Macrium Reflect

    With backups and media in hand I would first trying restoring your machine to a time before the USB controller issue using System Restore. If this is not possible I would perform the inplace repair / upgrade procedure.

    Repair Install Windows 10 with an In-place Upgrade

    Before doing this I would reset BIOS to defaults and only make changes you originally had.

    If the inplace repair / upgrade, which will upgrade you to V1703, and bios reset does not work....

    Not understanding all the specific changes you made to windows settings, registry, device settings, etc, etc I would be inclined to perform a clean install. It likely will be faster and less effort than finding that one item out of alignment.

    Other members maybe have a different approach.

      My ComputerSystem Spec

  3. Posts : 5
    Windows 10 x64 1607 (Build 14393.1715)
    Thread Starter
       10 Oct 2017 #3

    Thank you for your reply.

    I have Macrium doing differential backups daily, so I'm good to go on that front.

    Before I resort to the repair install, I was hoping I could learn more about the sequence of events that happen when you plug in a new monitor. More specifically, where does Windows 10 look for information about how to treat the new device?
      My ComputerSystem Spec

  4. Posts : 5
    Windows 10 x64 1607 (Build 14393.1715)
    Thread Starter
       11 Oct 2017 #4

    Well Caledon, your advice worked. I did a repair install and after it finished the second monitor popped right up. Thanks for nudging me in that direction. The repair took about 9 hours to complete. First, the repair wouldn't begin the download, just kept looping through "Making sure your system is ready". Then it would hang at 92%, forcing me to keep restarting it from zero. Eventually, the Windows Update repair tool solved the problem.
      My ComputerSystem Spec

  5. Posts : 9,045
    Windows 10 Pro x64 Build 1803
       11 Oct 2017 #5

    Great. Glad the forum could help.

    I know it's more work but I would be planning an evening to do a clean install. Nine hours and some hangs is just not right. The Fall Creator Release will be out shortly. It might be your targeted source.

      My ComputerSystem Spec


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