I have two Dell U2518U with resulotion 2560x1400 each
when i come back to the computer only one screen is working
then i try to unplugg the two hdmi sometimes it works,
Sometimes i have to restart, and sometimes i have to both restart and unplug the hdmi to come back to two screens.
I have the latest graphicdriver and monitor drivers
i have update the bios
I run Win10