RetiredF4
How could he know?
Yes, the PNF certainly knew; he read the ECAM. Did he impart the same message to the PF, or did the PF simply not hear it, along with the other audio clues.
The subtile changes to the PFD, as pointed out in the BEA's report, do not appear to have warranted a comment by either pilot. The PF may have conceded this point when he made the comment, "I have no more displays". But I suspect he really was inferring that he couldn't interpret what was being displayed.