Significant suspend regressions on Framework 13/AMD Linux 6.18.2 (Arch)

OK, tentative breakthrough. After all this I think this has been caused by my HDMI expansion card being installed in one of the unsupported ports.

Hey, that sounds new to me. Is there a (definitive) link that describes supported and unsupported ports for the HDMI plugin?

Dunno where this is definitively documented but it’s the 2 slots closest to the back.

3 of the slots should work for the HDMI card (all but the front left)