I have a Latitude E7440 docked with 2 DisplayPorts on it. I have a DisplayPort Hub that allows me to connect 2 DisplayPort monitors through 1 DP port to the docking station. I have 2 hubs with 4 monitors connected to the dock. The monitors are, u2412m. I cannot get any of the monitors connected through the hub to work. They all work prior to booting into windows. I can see windows is loading on all of them and then all of the sudden 3 of them go into power save mode and I've only got 1 left that works. I have updated bios/graphics drivers, etc, downloaded all windows updates. I cannot get all 4 monitors to work at the same time. Any advice on this?
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