This is a "feature" of Displayport and Windows. This is how it was "designed" to work. Google for many complaints and no solutions.
The best option so far is to leave your monitor on, and use Power management settings to turn off monitor when it's idle...
There should be a simple "do not detect monitor changes" checkbox in display settings to override the stupid default behaviour of displayport and windows, but there isn't. No one has ever wanted their windows desktop completely rearranged every time a monitor is turned on or off or plugged in.
Also Dell UP3214q and UP2414q seem to have Displayport 1.2 issues, so that they do not resume from sleep (or sometimes detect at post) properly, so that using power management is also a roll of the dice, because the monitor may not wake up properly without a power-off/power-on.
I've also posted on Dell forums. I think the problems will require firmware updates from both Dell and AMD.
01:21 PM by