Concerning Chalmers and incorrigibility. I discovered this today, which greatly puts in perspective his thoughts on incorrigibility that I don't remember being fleshed out in his book. (knowing he's conscious is what stimulates him to pursue his arguments, but he doesn't argue from this intuition.)
Warner locates the source of the problem in a different place: the incorrigibility of our knowledge of consciousness. I agree with Warner that there is some sense in which some knowledge of consciousness is incorrigible - I know with certainty that I am conscious right now, for example - but it is remarkably tricky to isolate the relevant sense and the relevant items of knowledge. Warner himself notes that plenty of our beliefs about our experiences are mistaken. He gets around this problem by limiting this to cases where our ability to recognize experiences is "unimpaired", but this seems to come dangerously close to trivializing the incorrigibility claim. After all, it is arguably a tautology that an "unimpaired" belief about an experience will be correct. Warner may have a way to unpack the definition of "impairment" so that the claim is non-circular, but this is clearly a non-trivial project.
That's a pretty low assessment of incorrigibility from the most noteworthy dualist out there.