I am also experiencing that both bluetooth and wifi are missing after setting mem_sleep to deep. My laptop also refuses to actually stay asleep in s2idle, I can see the screen come back on after I close the lid.
Ubuntu 18.04 Kernel 4.15.0-36-generic XPS 9370
I am also experiencing that both bluetooth and wifi are missing after setting mem_sleep to deep. My laptop also refuses to actually stay asleep in s2idle, I can see the screen come back on after I close the lid.
Ubuntu 18.04
Kernel 4.15.0-36-generic
XPS 9370