https://bugs.winehq.org/show_bug.cgi?id=53910
--- Comment #5 from Rafał Mużyło galtgendo@o2.pl --- OK, so minor updates aside (bug 54769), I'll add a line from xwininfo from a situation when the window has been moved (through the blankouts) completely offscreen:
0x6a00007 "dnSpy v6.3.0 (32-bit, .NET, Administrator)": ("dnspy.exe" "dnspy.exe") 1300x738+0+0 +-1170+273
The relevant part of 'xrandr -q': HDMI-A-0 connected primary 1920x1080+0+0 DVI-D-0 connected 1280x1024+1920+0