Plugable UD-3900-EU - Laptop fine 2 screens attached via HDMI and DVI blurry

I have the Plugable UD-3900-EU and have attached my 2 Acer V246HL monitors to it to connect to my laptop, via HDMI and DVI-I ports.

Unfortunately the two connected monitors are very blurry. The resolution for both monitors is set up as 1920 x 1080 the same as my Laptop so I don’t know why the blurryness is occuring.

If I plug one of the monitors directly into the laptop via HDMI is it fine, however this defeats the object of having plugable. Can you please advise.

Hi Frank,

Thanks for posting! Sorry to hear that your monitors appear blurry while connected to our dock and I will be happy to help!

Thanks for your description of the behavior and taking the time to test connecting your monitors directly to your laptop. Just to clarify so I can understand what is blurry, do you notice all applications, pictures and icons to be blurry? Or is there any size difference with some of the windows and text when our dock is connected compared to when the monitor is connected directly to your laptop? I ask because it sounds like the blurry behavior you describe may be due to Windows scaling the content on your display. We wrote about this behavior here ->… in case this sounds like this could be relevant.

Pending that information, we’ll want to examine some log files to see if they can tell us what is happening. To help us do so please download and run our diagnostic utility PlugDebug –> with everything connected. Please send the file that is created to our direct support email address ( with ‘Ticket 140551’ in the subject line so we can match everything up. ** If you try to respond to the post with the file the support forum will not allow it to come through **

Thank you,

David W.
Plugable Technologies