taffysaint

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5 years ago

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February 20th, 2022 22:00

U3421WE, USB Type-B upstream issues

Hi All,

I specifically ordered this monitor because of the built-in KVM switch, so I I had it all connected up. Put the Mouse, Keyboard, Mic, Camera all into the monitor

USB-C Upstream connected to Mac
USB-B connected to Dell XPS 8930

Everything works 100% fine *until* I want to use video conferencing (Zoom, Teams, Discord) on the PC, at which point I lose all sound and the keyboard and mouse just stop working every 3-5 seconds.

If I connect the USB-C to the desktop, everything works fine.

I spent 4 hours or so with Dell Support today with the result basically being 'I know your monitor is a week old and it doesn't work properly, but you're going to need to pay for software support if you want to get it fixed'

Anyone else seen this problem before I send it back and look for another monitor?

  • 1204

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    Posted February 23rd, 2022 00:00

    Apologies, I did not include the video connection as it wasn't relevant to the problem with the USB devices.  I am using USB-B and DP from the XPS to the monitor.   After spending some time trying a different cable (luckily I had one) and multiple USB ports, I found a combination that worked utilising one of the 5gbps USB 3.1 ports, instead of the 10gbps port and a different cable.  I managed to get this working correctly last night

    The disappointment here is that I spent a half day basically being told that this was my fault and when  the 'Update your drivers, firmware and OS' advice failed to give any results, I was told to go pay for premium software support (which wouldn't have helped).   Even after giving up on any hope of useful assistance and suggesting a return, it took 2 days to get a message saying 'we'll get back to you in 2 days'

    Anyway, its working now but its a very poor support experience

  • DELL-Chris M

    Community Manager

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    Posted February 21st, 2022 13:00

    USB Type-C Upstream connected to Mac
    * Makes sense since USB Type-C provides USB Power Delivery, Data, and DisplayPort video signal.

    USB Type-B connected to Dell XPS 8930
    * Which provides access to the USB downstream ports. But how are you getting video from the XPS 8930 into the U3421WE?

    * In the "Setting the KVM switch", the usage shown on page 62 =
    When connecting HDMI + USB-B to computer 1 and DP + USB-C to computer 2

    * In the "Setting the KVM switch", the usage shown on page 63 =
    When connecting HDMI + USB-B to computer 1 and USB-C to computer 2

    * I do not see this usage =
    When connecting DP + USB-B to computer 1 and USB-C to computer 2


    DELL-Chris M (old account)

    #IWork4Dell

  • StingyFE

    1 Rookie

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    Posted May 26th, 2022 10:00

    Sorry late to the game but does the Teams button now works for you?