Hello.
I've got two problems with new OptiPlex 5270 All-in-One (p/n 5270-4944):
* Can't call OSD menu. Support didn't help me at all. "Dell On Screen Display"application installed, but button only turn off display. BIOS option "Enable/Disable OSD" work correctly: if "Disable" - pushing this button do not have any affect; if "Enable" - pushing this button only turn off display. Again "Dell On Screen Display"application installed, i tried reinstall it several timese, but there was no any affect.
So, without OSD menu I can't adjust display settings.
How can i Fix this issue? By the way BIOS version actual: 1.1.1.

* Second problem, I think it's based on first one, I can't use build in display as monitor for other source (Dell Optiplex 3070 Micro). 5270 AiO has dual use DP (DP++), so it's seems to me I can be able to chose source for display DP or internal PC...

Please help.