S2716DG, Power Reset * Turn the PC and S2716DG off * Disconnect every video cable from the GTX 1070 * Disconnect every cable from the S2716DG including the power cable * Press and hold the S2716DG power button for 8 seconds * Reconnect only the S2716DG DP to DP cable = GTX 1070 DP out port --> S2716DG DP to DP cable --> S2716DG DP in port More @Wikipedia
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