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Encompasses the configuration, usage, and control of additional displays / monitors / screens. Often termed dual-monitor or dual-head (for two monitors), and often in involving external displays. Connection methods include VGA, DVI, HDMI, and DisplayPort. For single displays, use "monitors" instead. For directing a program's graphical output, you may also want the "display" tag.

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Your log says it is not able to read EDID for your display port, I assume to your external monitor. Intel requires you to supply EDID config via xorg.conf, at least that is what I can pull up from my …
answered Jan 28 by RussellB