Please try the steps below if you are having visual or power issues with your monitor.

1. Make sure the power connector in the back of the monitor is snug in place. This is a very common issue for those power plugs to gradually come loose overtime and cause monitors to go in and out. Check for visuals.

2. If that’s verified to be snug and it’s still an issue, try the below in order:

1. Unplug the monitor from power and unplug it from the dock (or desktop).
2. While it has no power, hold the monitor Power button in for 30 seconds to relieve it of any stuck electrical charges.
3. Plug it the monitor back into Power and plug it back into the dock (or desktop).
4. You might need to turn it on, but sometimes it will come on its own when it detects the dock (or desktop).
5. See if it the visuals come back on normally.

3. If it’s still an issue and you use a dock, make sure the dock power is plugged snug as I have also seen monitors go in and out due to the power of the dock being halfway in the back of it.
   1. You can also try the steps listed above with the dock (just replace monitor with dock and the steps are the same.
       
4. As always, give your desktop or laptop a reboot to make sure it's not a communication issue between the monitor and your computer.