[Bug 52500] Wine fails to load the user driver when using NVidia Optimus

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52500

--- Comment #38 from O. Nykyforchyn  ---
Created attachment 75888
  --> https://bugs.winehq.org/attachment.cgi?id=75888
xz'ed log of a failed attempt to run winecfg

First I run 
WINEDEBUG=+relay,+seh,+explorer,+x11drv,+reg,+module winecfg 2>&1 | tee
~/wine.log
to create a fresh prefix, but when the log size reached 3 Gb, I gave in.

The attached log is for an already created prefix.

Hope that will help to find out what is going wrong.