I have a Precision M6700 (GQ12BW1) which is connected to Dell E-Port Plus Advanced Port Replicator. I have connected two external displays to it (Dell U2412Mb) via display port cable and laptop screen is also active.
Problem is that one of my displays flickers when I put something on fullscreen on it (e.g excel, picture etc). Not always but frequently enought to disturb.
I have updated BIOS and graphics driver to latest that dell support page offers. Also changed DP cables.
RE: Precision M6700 2 external displays, one flicers
* Swap the U2412M on the DisplayPorts on the E-Dock * Does the flicker issue follow that problem U2412M when moved to the other DisplayPort? * Test each U2412M by itself on both of the E-Port DisplayPorts * Do they both flicker? Or does only one flicker? On both ports, or just one port?