I have Windows 10 64-bit PC with Palit 1070ti graphical card and 3 Dell U2412M monitors (please not that they are not 1920x1200p, not basic FullHD 1920x1080p. Using latest Windows 10, nVidia drivers and applied fix for DisplayPort 1.3/1.4.

Yet i'm unable to connect all 3 monitors using DisplayPort-only cables. When connected third monitor one of three instantly entering power save mode.

It's ok when:

  • Two monitors connected using DisplayPort. No matter which ports on videocard.
  • Two monitors connected using DisplayPort + 1 monitor connected using DVI-D. Works like a charm. No matter which cable was used.

What's wrong with 3 DisplayPort setup?

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