So a little nut to crack for my #linux bubble: I am running #mintlinux on my external Thunderbolt SSD on the 2013 iMac. Problem is: When I suspend and then resume, the TB SSD does NOT wake up. System hangs -- because there is no root FS anymore!
I already tried iummu=soft and pcie_aspm=off in the grub defaults:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash iommu=soft pcie_aspm=off"

But that does nothing to help. Any other ideas how to wake the sleeping princcess?

@root42 TBF, my job's MacOS Mac does not wake up the external keyboard. I have to unplug and replug it every time.