AGI doesn't require consciousness. We likely will have no idea whether or not the first AGI computer is conscious or not. What we will know though, is that it is solving novel problems that humans struggle with, and from the outside the only way to discern it isn't another human is because it is way to smart to be one.

I strongly suspect that the first computers which actually are conscious (AGI or not), whenever that happens, will have to fight a heavy uphill battle to prove it. And there will always be a group of people who will never believe an AI (is it even artificial at that point?) is conscious.