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No audio E5440 bios A14 with EL capitan 10.11.6


tonio92

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After Reboot and Post installation with the four kexts in L/E and S/L/E  it seems that Screen of the laptop  (Apple desappeard during boot)  is not activated but HDMI is OK

When i check audio configuration , audio installation seems to be OK

The problem is a bad configuration or a conflict between HDMI and CRT after post installation or during rebuild permissions 

post-95727-0-13735700-1475317099_thumb.png

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Seems I have missed the fact that your system has a second display (Nvidia). You'll need to get that disable either in the BIOS or through DSDT. As far as I know, Dell Latitude don't have that option in the BIOS, so you'll have to do it through DSDT.

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