My setup is Dell E5450 laptop + EXP GDC 8.4d + Dell DA-2, described HERE
Having a problem with static discharges: sometimes when I touch keyboard after handling some synthetic clothes, or insert USB flash drives into USB ports, or even plugging headphones 2.5mm jack into the socket - GPU fails (no output to monitor), no way to get it back up, only option is to hard power off the laptop with Power button.
All power plugs are grounded (laptop's PSU, DA-2).
Has anyone dealt with this problem?