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I have an old Toshiba desktop TV that I want to use as a second monitor for a very new MacMini. All that the display has is VGA input. I already have an Apple display in my HDMI port, so I can't use a VGA to HDMI adapter. Is there such a thing as a VGA to Thunderbolt adapter that supports Lion (Mac OS X 10.7)?

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Monoprice has what you want.

Apple as well.

This is a hardware thing, it has nothing to do with whether or not Lion supports it.

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I was just about to say "And Lion is irrelevant" but you edited it in already...:) – Shinrai Aug 2 '11 at 15:02
I aim to please :) – peelman Aug 2 '11 at 15:03

A quick google search confirms that there is an adapter from VGA to a mini display port. That means you can use a vga display in your thunderbolt port. Thunderbolt is backward compatible so the VGA to mini display adapter should work for Thunderbolt

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There are a lot of Thunderbolt/DisplayPort to VGA/DVI, but not the other way around. So you can use Apple products on non Apple displays, but you can't use non Apple laptops/notebooks on the latest Apple displays.

There's another thread here, but the solution they provide sounds quite expensive:

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