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I answered a similar question here. You can summon the Dock on a different display by dragging the cursor to the bottom of it's display, and then continuing the dragging down motion for a second or so. Is it possible that this is occurring when you inadvertently perform that action?


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HDMI did not work for me but the Apple Mini DisplayPort to DVI converter cable adapter worked perfectly! with a HP Pavilion 25bw


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Apparently older Macs don't support audio through HDMI. Audio needs to be transmitted separately through the jack connection on your Mac, just as if attaching speakers. Then depending on your TV could be jack or RCA.


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That's not really what you wanted, but have you tried this arrangement?


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I suppose you could put together a script which runs a diskutil eject command on the specific volume, then schedule it to run at 4:30 PM each day via cronx or another scheduling app. When you go to leave at 5:00 PM, the disk has already been ejected. The drive will always be something like /dev/disk2, so the script only needs to eject the specific volume ...


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You can use Insomniax to disable sleep when the display is closed. This will mean that you can close the lid and display the screen on a secondary monitor mode without needing to have a power adapter connected as the Mac will not sleep when you close the lid.


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Reboot the Mac with the monitor cable connected. That sometimes fixes it.


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So I figured this out, kind of. I cloned and built https://github.com/CdLbB/fb-rotate, and flipped the external monitor around a couple times with it. Suddenly everything works, even after a reboot. The only thing I can think of is that a config file somewhere got corrupted, and this utility rewrote it and fixed it. Either way, it works now!


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No, that 3-in-1 adapter will not drive multiple monitors. What you need is either a system that combines 2 monitors, or a system that chains them. While DisplayPort allows for daisy-chaining displays, this only works on supported hardware. This means your monitors need to both have two DisplayPort connectors and official support from the vendor and inside ...



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