Looking in the FCTM, OP-020, Indications section says the following:
"When protections are lost, amber crosses (X) appear, instead of the green protection symbols (=)."
The picture below it then shows the PFD in 3 configurations, Normal Law, Alternate Law and Direct Law. In the alternate law picture all of the protection symbols are replaced with amber crosses including the Angle of Bank protection indicators. It does not differentiate between ALT 1 or ALT 2.
If the airplane is in alternate law, ALL off the protection symbols are amber, regardless of whether the A of B protection is lost.
The FCTM does seem to agree with the FCOM in this case, although admittedly it is not quite as specific.
FCOM: "Bank angle limitation remains effective in ALT 1, which uses roll normal.
However, since ALT 1 is generally an unprotected law, all protection marks on the PFD are in amber for simplicity."
From both the FCOM and the FCTM I understand the following: You will never have some amber crosses and some green protection symbols. It is all or none. And thus you will not be able to tell if you are in ALT 1 or ALT 2 by looking at the PFD.