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My internal display is cracked and does not work, I am dual booting Linux/MacOS on a 2016 MacBook Pro with rEFInd, the issue is I can't select any boot options as neither rEFInd nor Startup Manager show up on my external display, and neither rEFInd nor startup manager have text-to-speech (like recovery mode) that I can use to "see" what's on the screen.

I don't have an external keyboard/mouse, so I can't use clamshell mode. Is there any way to force output to external display?

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  • Really the correct answer here is grab a mouse and keyboard and run in clamshell mode. It's not like either one needs to be special. Aug 5 at 23:20
  • @MarcWilson Would startup manager show up in clamshell mode? I dont want to buy a mouse/keyboard without being 100% certain :P Aug 5 at 23:32
  • You do not need to see the screen to use rEFInd. Aug 6 at 1:21
  • @DavidAnderson How else would you be able to select boot OS? Aug 6 at 11:24
  • There are many differ ways to select the boot OS. One way would be to press 1 through 9 to launch the specified boot loader by number. See Using Keyboard Shortcuts. Aug 6 at 13:13

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