Comment 2 for bug 1866343

I have a similar problem on DELL Precision 7740 (laptop):
1) suspend
2) unplug the cord
3) try to resume : the computer does not resume, but the keyboard is lighted
4) hard reboot (by pressing the power button during several seconds)
5) at the next boot, the computer hangs just after the GRUB.

Tested on Kubuntu 18.04 (updated), and with several Kernel: 4.14, 4.15, 4.18, 5.3.