Comment 15 for bug 1798921

I will say yes, I have three systems
Linux Mint / Xubuntu / Debian (stretch)
Debian (stretch) stable: kernel 4.9.XXX - sky2 / suspend - OK
Linux Mint 18.3 Sylvia: kernel 4.13. XX - sky2 / suspend - OK
Xubuntu 18.04.1 LTS: kernel 4.19.1 - sky2 / suspend - Error
sky2 works OK also on kernel 4.14.xxx
I think sky2 does not work correctly on kernels above 4.14 ....
but I am not a specialist, maybe others will speak :-)
for now I will still use this fix:

cd /lib/systemd/system-sleep/restore_connection

............
#!/bin/sh
sleep 5
case $1/$2 in
post/*)
sudo systemctl restart network-manager.service
modprobe -r sky2
modprobe sky2
;;
esac
.............
regards!