I am trying to connect a Dell Pro 14 to a TBT4-UD5 and only one monitor works, but it flickers on and off at roughly one second intervals. My dual monitors are connected via the HDMI ports with HDMI/VGA cables. I have disconnected all cables and the power numerous time to “reset” the docking station to no avail. Each time the dual displays briefly works, then one goes out and the other one commences to flash.
Hello jcoleyarch,
Thank you for reaching out on the forums!
I am sorry to hear that you are running into issues with your TBT4-UD5, but I would be happy to help diagnose the issues here.
First, can you confirm that you are trying to connect to your laptop using the included Thunderbolt 4 cable that came with your dock? We’ve seen issues arise when a third party cable is used.
Next, I am a little bit concerned about the HDMI to VGA cables, as there is a chance they could be causing the flickering. Can you let me know the exact make and model of the HDMI to VGA cables you are using?
Lastly, in regards to the single monitor showing, can you send me the exact SKU of your system so I can verify that we expect this host to be compatible with our dock? You can find the SKU by searching for “system information” and then letting me know what it says in the “SKU” row.
Thank you,
Evan
Plugable Technologies
www.plugable.com/support
Yes, I am using the thunderbolt USB-C cable provided.
The HDMI to VGA cables were purchased off of amazon and are Benfei 3 foot cables. No idea what the SKU is.
The monitor that shows is a DELL P2212H (did not locate the sku).. Although I have swapped out several different ones trying to get this to work. It was manufactured in 2013.
Hello James,
Thank you for the response.
Apologies for the confusion, but I was hoping for the SKU of the host laptop itself. Would you be able to provide this?
Thank you,
Evan
Plugable Technologies
www.plugable.com/support
The service code for the Dell is 21234986320
Hello James,
I think this would be easier to troubleshoot if you reach out to us directly over email. To do this, please email us at support@plugable.com.
In the subject of your direct email, please reference case 479230 which will allow us to match things up and then provide the next steps.
Apologies for the extra steps in the process, and thank you for giving us the chance to help!
Best wishes,
Evan
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