Not a sequence, but test if it sleeps/wakes in Safe Mode.
I didn't mean to say "graphics" card. I meant to ask what the make of the FW PCI card is....
There are FW PCI cards that have known issues.
You say "lately"with regard to issues. What changed? External drive make? OS update?
FW cards are sometimes the same as USB cards with regard to mass storage devices. If a drive is mounted and active, when the machine sleeps, it sleeps too. However, when the machine awakens, or is commanded to wake, rather, the system remembers the previous drive state.
Problem is, that just before the PCI bus is powered up, the system stalls looking for the drives that were previously there.
Can't find them and won't, simply due to power on sequencing.
Since your card hasn't given you issues until recently, I would try pulling the card, cleaning the gold contacts with an eraser, and reinstalling the card.
Compatible FW cards typically have alternate power provisions, so it coud just be a card seating issue.