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MarcusInCO

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6 years ago

M

MarcusInCO

11 Posts

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November 13th, 2020 05:00

U3417W, not detecting source when changing inputs

I have a Dell Latitude 5411 connected to a Dell WD19 dock via USB Type-C.  From the dock, I have a DisplayPort connection to the DisplayPort connection on the back of the U3417W.  I do not know if its pertinent to the conversation, but I will include it just in case, I also have a Dell S3219D connected to the DisplayPort out on the U3417W and MTS turned on.  Everything works good there.

The other PC setup is a desktop PC, I currently have it connected to the U3417W via HDMI.  There is an issue with the display here where I get a pretty consistent "flickering".  Just hooked everything up so I need to go an update drivers and confirm no issues there.  It displays fine on the U3417W and of course does not display on the S3219D because I am using HDMI and not a DP connection.

The issue comes in when I switch sources, either using the buttons on the monitor or through the Dell Display Manager software.  When I switch back to the laptop, the monitor says it does not detect a signal and goes to sleep.  If I undock the laptop and reconnect it, it displays then.

Any thoughts?

  • Jesse L (retired)

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    Posted November 13th, 2020 06:00

    MarcusInCO,
     
    Update the drivers and in the meantime I will contact our monitor level 2 tech to find out if this is normal. 
     
     
     
     

     

    Jesse L (retired)

  • Jesse L (retired)

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    Posted November 13th, 2020 07:00

    MarcusInCO,

     

    Turn the Latitude 5411, U3417W, and S3219D off. Disconnect the S3219D cables from the U3417W. Test only the Latitude 5411, U3417W, WD19 dock via the two PC (Latitude 5411 and Desktop PC).

     

     

     

    Jesse L (retired)

  • Jesse L (retired)

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    Posted November 16th, 2020 11:00

    MarcusInCO,
     
    Following up to see if the information provided resolved the issue? Let us know.
     

     

    Jesse L (retired)

  • Jesse L (retired)

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    Posted November 17th, 2020 11:00

    MarcusInCO,
     

     

    Following up to see if the information provided resolved the issue? Let us know.

     

    Jesse L (retired)

  • Jesse L (retired)

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    Posted November 18th, 2020 07:00

    MarcusInCO,

     


    Disconnect the S3219D cables from the U3417W. Test only the Latitude 5411, U3417W, WD19 dock via the two PC (Latitude 5411 and Desktop PC).
    ​

     

    Jesse L (retired)

  • Jesse L (retired)

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    Posted November 18th, 2020 07:00

    MarcusInCO,
     
    Give me some time to discuss this with a level 2 engineer.
     
     
     
     
     
     

     

    Jesse L (retired)

  • MarcusInCO

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    Posted November 18th, 2020 07:00

    Sorry, thought I had notifications on and didnt realize there were messages here!

     

    First thing I did was update drivers and bios on the laptop and the dock, same issue.  

     

    I also have  d6000 dock sitting around, tried that out.  It actually would switch back and forth on the input sources with no issues, but the DP pass through wouldnt work.  

     

    Still stuck w/ the same issue.

  • Jesse L (retired)

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    Posted November 18th, 2020 08:00

    MarcusInCO,

     

     

     I will check to see if there is more information.  I will reply back once I hear.

     

    Jesse L (retired)

  • MarcusInCO

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    Posted November 18th, 2020 08:00

    No, it is not working.  The goal is to have dual monitors here and use the DP pass through function of the U3417W.  Having a U3419W that is not connected it not a working solution

  • Jesse L (retired)

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    Posted November 18th, 2020 08:00

    MarcusInCO,
     
    By only using the U3417W proves that trying to daisy chain the second monitor from the U3417W is the problem. So is the fault that the dock cannot support two monitors in a daisy chain AND two PCs, unknown. Try testing only ONE PC on the dock and then connect the two monitors in that daisy chain. What happens?
    Also, we really need to know all of the monitor service tags to know how to connect them to the dock. Send them to me in a Private Message.
     
     
     
     

     

    Jesse L (retired)