Tips for use (which I found out after some time schmezlich):
1. HDMI avail: all motherboards support in the BIOS / EFI no DisplayPort drivers, ie if you connect the monitor via DisplayPort one sees only an image when Windows and the driver is loaded. You have to use HDMI To change something in the bios. In addition, the Windows DisplayPort driver sucks, resolutions in multimonitor operation are "forgotten" and it takes a few seconds to display an image after turning on. No comparison to HDMI, DisplayPort is not yet practicable. I have an adapter from HDMI to DVI (because I need the HDMI graphics card for the sound), which works wonderfully.
2. If necessarily be DisplayPort: change the menu on DisplayPort v1.2, otherwise the monitor shows streaks on (as I said, the driver sucks)
3. Brightness at 36%: entsprich the recommended 140 cd / m²
4. Otherwise, default settings: must be changed depending less in USD Monitor, the better. By nature, the monitors are very well optimized, here is a calibration report with.
Vollsändiger "proper" test on TFTCentral:
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