Second monitor signal lost but recognised in Display Settings?

  1. PJB
    Posts : 10
    Windows 10

    Second monitor signal lost but recognised in Display Settings?

    Hi all

    I have an old Dell Inspiron 3847 that came with HDMI & VDA ports. Up until very recently I was using it with two Eizo
    EV2336W monitors, one VGA to VGA and one HDMI to VGA.

    About a month or more ago I lost signal on the HDMI one & noticed the HDMI part was bent, I think this must have happened before as I used it for something else and when I wiggled it it worked (like an old Walkman headphone socket!) but eventually it died so I thought best to throw it out and replace it.

    Found that I also had a short lead HDMI to VGA converter so plugged that in and it worked fine but every now and then would flicker. Now I don't think this is a PC problem as it also flickered when I used it as a second moniter for my laptop.

    Then I lost all signal with the converter so ordered an HDMI to DisplayPort lead and just plugged that in but nothing, went to display setting and it doen't recognise a second display as being present. When I use the HDMI to VGA it does recognise a monitor as being present but there is no signal, so I can identify it it but cannot see the 1 come up as no signal. Also the screen shutdowns into eco mode very quickly (not sure if last part is in anyway relevant).

    I've also tried to update the graphics driver Intel 4400 but when I do from device manager it says it is up to date (version but when I go on the dell site it tells me it needs updating but then when I update it says it cannot & I need to go to Intel, went to Intel and guess what it said? You need to go to Dell!!!

    Can anyone help with what this might be please?

    All input gratefully received and very much appreciated.

    - - - Updated - - -

    Quick update:

    I've uninstalled and reinstalled (automatically on start up) the graphics driver and no change.

    Swapped monitors/cables/connections and same issues, detected but no signal.

    However I just tried my laptop again and with the HDMI to Displayport I got nothing but when I plugged in the HDMI to VGA connector lead it gets a display, albeit it still flickers every couple of minutes or so.

    Also just to add that when I use the HDMI-VGA on the PC it shows as 2 x 'Generic PnP Monitors' in device manager as well as showing 2 screens in display settings but when try and ID both screens it just keeps showing the number 2 on the working screen, even when trying to ID screen 1, so frustrating!

    So I am thinking maybe the HDMI port on my PC is kaput and the leads are not great (HDMI-VGA needs tweaking in the port to work and HMDI-Dp doesn't work at all) so is it possible my PC poprt has damaged the HDMI-VGA converter?
      My Computer

  2. Posts : 16
    Windows 10

    1] Update Driver software
    2] Manually detect Monitor settings
    3] Hardware troubleshooting

    Above can be a checklist and if 1 and 2 don't issue will be detected on the third step i.e hardware issue.
      My Computer

  3. PJB
    Posts : 10
    Windows 10
    Thread Starter

    Thank you @Freya009

    Plugged it in again and nothing happened, went to make a chip of tea, came back and it was working! Strange but hey its working so I'm a happy bunny
      My Computer


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