4k display port fuzzy.... I bought the 4k usb 3.0 display port adapter and plugged it into my 2k monitor and it was fuzzy


#1

Just wanted to give everyone the heads up… I bought a 2nd 2560x1440 monitor and the plugable usb 3.0 4k adapter. I set up the drivers and plugged in plugable and then plugged in the monitor and it was fuzzy like the picture I have attached (the center monitor is the fuzzy one)

I got it fixed through some tinkering and thought I would share. , I didn’t see anything on the forum for this. The cause for the fuzziness was for some reason it defaulted to 75 Hz instead of the 60 Hz that the display is rated at.

This was windows 10

I changed this in display settings: advanced display settings : display adapter properties: monitor tab (and in the monitor tab change to 60 Hz)

I am attaching a picture of how the monitor looked so you can see the type of fuzziness. the monitor hooked up to the plugable is the middle monitor!](https://d2r1vs3d9006ap.cloudfront.net/s3_images/1472706/20160824_132425_inline.jpg?1472065665)](https://d2r1vs3d9006ap.cloudfront.net/s3_images/1472706/20160824_132425.jpg?1472065665)


#2

Thanks for posting!

You did a great job in isolating the behavior, and appreciate you taking the time to share with our community.

In most cases where things appear fuzzy, the issue is usually traced to either and analog video cable being used or Windows itself scaling the content incorrectly on the attached display.

While an incorrect refresh rate was a common cause of display issues in the days of CRT displays, it is not as common any more with LCDs that typically communicate the desired/best refresh rate via EDID -> https://en.wikipedia.org/wiki/Extende…

Is it possible for you to share which particular brand and model monitor you are using? This might help others with the same issue.

Thanks again for sharing!

Bob
Plugable Technologies
www.plugable.com/support


#3

Bob… not a problem, your team got back to me later that day with the same solution. Great product support.

I am using an Acer K272HUL ebmidpx 27" monitor 2560 x 1440


#4