I should pick up an HDMI or DisplayPort to VGA adapter. Sometimes the places I'm asked to teach don't have any other options and getting a straight answer about what to expect (so I can make sure I bring the right computer/cable/adapter) can be like pulling teeth. My usual approach is to just bring enough stuff that no matter what I run into I'll have something that plugs into it, but moving multiple laptops through airport security keeps getting harder and I'd like to be able to stop doing that