iamlhhoang Posted November 7, 2019 Share Posted November 7, 2019 Dear all, I use mojave. When I connect laptop with projecter (use HDMI port), I have a problems: Only show screen on Project, screen of laptop dont display and I couldnt control it. I just press Power buton to shutdown. This is EFI file: EFI.zip Plz help me. Thanks! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 7, 2019 Moderators Share Posted November 7, 2019 I covered this many times already and it's in my guide since 2016. https://osxlatitude.com/forums/topic/9179-dell-latitude-e7x70-clover-uefi-only/?do=findComment&comment=64816 Basically close your laptop lid until the projector monitor becomes primary, then open the lid again. Then both will be on. As quoted in the known issue section, this only occurs on a clean boot. If it's gone through a sleep cycle once, you won't have this issue. 1 Link to comment Share on other sites More sharing options...
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