Andrew Worsley via luv-main <luv-main@luv.asn.au> writes:
I have been too scared to try my lightening ethernet adaptor with resume :-). I heard it always has to be present on boot up to be activated...
Have a look at: https://www.jethrocarr.com/2014/06/16/thunderbolt-and-other-macbook-hardware... Seems to include some tips on getting suspend/resume working with thunderbolt (untested). It also recommends that thunderbolt should be unplugged on boot... (also untested) Note it is from 2014 however.
Anyway for what it is worth you might be interested in this problem I found- I had to patch grub to "enable PCI bus mastering" on the graphics card to avoid a black screen. Still can't make resume work with Debian stretch kernel (I can run stretch on the old kernel fine though :-)
I had no problems with grub.
As per NOTE: on top of https://wiki.debian.org/NvidiaGraphicsDrivers "...NOTE: For Apple systems, follow these steps first to prevent a black screen after installing the drivers: http://askubuntu.com/a/613573/134848"
This system seems to have intel based chipset. Also note I am using the kernel with stretch backports, due to problems with the intel graphics mentioned in another email here. -- Brian May <brian@linuxpenguins.xyz> https://linuxpenguins.xyz/brian/