I have a pc with dual monitor setup (i5 6600, Gtx 1070, 16gb Ram, Gigabyte z170 gaming K3), and i bought a simple HDMI switch in order to add a playstation 4 to my main monitor.

Right now one of the monitors is connected through DVI and my main is connected through HDMI. The problem is that when i plug the switch, my gfx card is disabling the HDMI port and acts like i have one monitor, so theres only signal in the DVI.

Can i somehow set the HDMI port in the gtx 1070 stay always on so i can actually switch displays (PS4 and PC).

Thank you

  • 2
    This depend on hdmi switch. Some can stay alive the connection, some not. Looks like your one is belong to second group. (I have hdmi adapters too, and they keep connection even the HDMI cable disconnected or monitor powered down) – uDev Feb 26 '18 at 19:28
  • i have to add that the switch does not come with a power supply. I suppose it uses the voltage from the HDMIs – Pointyhat Feb 26 '18 at 19:51
  • 1
    HDMI gives low power on 5V, so if the switch is simple, or very power efficient, no need external supply. But usually these are only a single IC to switch the data lines, no buffering or other features for the keep-alive concept. – uDev Feb 26 '18 at 19:54

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