@sydney: Thanks for the links. I haven’t tried a reset of the motherboard, I will try that after testing the removal the amd-pmf module : seems more promising.
I was investigating kernel updates because the [1] thread seems to end with a promising optimistic conclusion :
“Got it. I installed -hwe 6.8.0-20 and suspend/resume now works every time!”.
What does your ‘‘journalctl -b | grep -i suspend’’ or dmsg tell you after failure to resume ? does it also point to nvme issue ? I’m thinking of trying another ssd to see if this is the WD specific.
Thanks for the reply, it’s really helpful.