We have all been in a situation where a video wall which connected with 4K video wall controller is not displaying the correct image that should be coming from the source or it is slightly distorted. There are several things that could possibly go wrong. In the following article, we look at a number of common issues and the simple things that can be done to rectify them quickly.

Problem1：The 4K Video wall controller No Power

Solution: This is the first problem that you could encounter. The first thing to check is the AC Power Cord to ensure that it is firmly plugged into the 4K Video Wall Controller. A recent power outage can also affect this, so you should power the system down for a short period of time and then power it all back on.

Problem 2 : dispaly showed Wrong color

Solution: Similar to the previous problem, having the wrong colors needs to be avoided.

Problem 3: Off-center screen image, odd colors or no picture

Solution: This can be caused by several different reasons. The first thing is to make sure that all of the cables are in good working condition and are properly connected. Any issue here can create image distortion. The next step is to configure the output video resolution so that it doesn’t exceed the native supported resolution of the display. This can be seen with an “Out of Range” display.

The other thing that you need to take into account is the fact that changes do not happen immediately. Every time that the resolution of the input source in changed, you need to wait up to 20 seconds. After the resolution is changes, the selection of Input and the display layout mode will return to default and adjusting the input source and display layout mode to your specific requirements. Also a VGA source can take up to 10 seconds before it is recognized so be patient.

Problem 4: Poor linking

Solution: if the linking does not work, reboot the 4K Video Wall controller to establish the link

Problem 5: Poor quality video

Solution: If you are using T-Connectors to split video sources into images displayed on multiple screens, you need to know that that can lower the video quality that you see. Instead, you should use a distribution amplifier instead. You should also check to make sure that video source is not compressed and maintains the highest native resolution.

Whether you are looking for a single 4K Video wall controller or a complete networked visualization solution, BeingHD is your preferred partner.