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i know this is an old post but if somebody is still looking for a solution to their touchscreen problems, there is an application on app store which helps you test the touch screen of your iPhone and iPad. its a brilliant app. here's the link: https://itunes.apple.com/us/app/touchscreen-test/id1126113478?mt=8


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Thanks, based on the tip by ipmcc, I've created the one-liner that outputs a boolean value. echo $(ioreg -n IODisplayWrangler | grep -i IOPowerManagement | perl -pe 's/^.*DevicePowerState\"=([0-9]+).*$/\1/')/4 | bc


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From Apple.com's Q&A section: The Mac Mini has two video outputs: a mini DisplayPort and a mini DVI port. The mini DisplayPort is the same one you find on the current generation MacBook, MacBook Pros (as well as the Mac Pro) and the mini DVI is the same as the on the old black/white macbook. and: For 1920 x 1080 connect mini display port to DVI ...


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the short answer is no, there's no way to redo that in the OS so it assumes a smaller LCD. the LCD Panels' I2C chip (IDED chipset) in the LCD panel tells the logic board (and firmware) what size display it is. the OS responds by making settings accordingly. The only option is to replace the display or have it repaired..


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If you are entirely sure that the computer is starting up with a connection to a monitor, then this is a problem with the disk format more than likely. This will make it so that the Mac will not be able to boot into recovery either. You'll need to go to an Apple retailer to ask them to reformat the disk for you, or perhaps it's possible on your own. I know ...



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