https://bugs.winehq.org/show_bug.cgi?id=23745
--- Comment #45 from dennis.vaerum@gmail.com --- (In reply to dennis.vaerum from comment #44)
(In reply to Stefan Dösinger from comment #43)
Please retest this with a current Wine. Since 1.7.32 we minimize the window on focus loss. For me the game now resumes operation correctly on restore.
I am running ArchLinux with Plasma 5 on my desktop, KDE 4 on laptop and wine 1.7.55 and this is still a problem.
Okay, know it works for me. I am on wine version 1.8-rc3. What I had to do was. 1. Go to System Settings -> Display and Monitor -> Compositor 2. Change the setting "Keep window thumbnails" from "Always" to "Only for Shown Windows".
Hope this helps others