gengstapo Posted February 17, 2020 Share Posted February 17, 2020 (edited) @Hervé Im having similar issue with my HS setup, dell latitute 3480, i5-7200U Once the hdmi plugged in, the laptop display went blank, only could see the external tv But, when i put my laptop to sleep & wake up again, both screen got display (hdmi still connected) Even the hdmi could be plugged off & in (after sleep), the laptop display is fine What could be the culprit? Dell’s MacBook Pro IORegistry.zip config.plist.zip Edited February 17, 2020 by gengstapo Link to comment Share on other sites More sharing options...
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