Monitor displays artifacts after waking up

I'm not sure where the fault may be for this, but here goes. I have a Dell E7250 laptop connected to a standard Dell e-port docking station. My monitor is a Dell U2515H connected via DisplayPort. Anytime I am away from my desk long enough, my laptop goes into sleep/power save. When I wake up the computer, the right side of my laptop shows heavy artifacts. If I unplug the DisplayPort cable from my docking station, then reconnect it, the issue goes away. I've swapped docks, cables, and even monitors, all identical, and I can't seem to narrow this down. I've also updated to the latest monitor driver for Windows 10 x64, and that didn't solve the issue.

Has anyone come across this or have any suggestions?

Thanks!

I have 2x Dell UP2414Q and have the same problems...