@kimvanwyk @mariatta the specific complaint hit my eye oddly just because it's the sort of thing that would have been a vendor-specific problem in like… 2012, maybe… but nowadays if you've got a dell XPS or a macbook air you're in the same boat ;). Nevertheless, the core message, "communicate clearly about display output requirements" is important.
Not just "HDMI" either. Resolution is an important detail! Some places allegedly have 4:3 setups, which is a nightmare if you're not expecting it…