Pasqualdo Posted April 24, 2012 Share Posted April 24, 2012 Hi, I have a working Lion Install on my Dell Laptop. I decided to connect it to an external monitor with an HDMI cable and everything worked ok. Now I cannot go back to my laptop monitor, it is not detected in the monitor section of the preferences panel and if I boot without the external monitor I get a white screen instead of the usual login screen.. Any suggestion is welcome.. Thanks Link to comment Share on other sites More sharing options...
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