Comment 16 for bug 227563

I talked to Scott on Wineconf

Basically there are two issues

1) A X server setup issue. Some X server setups with multihead support only one
resolution. Wine can't change it until the user fixes the X setup. As far as I
know this is just a config bug, not a code bug.

2) Wined3d doesn't support multihead. The lower layers of Wine do support
Xinerama and report multi-head setups to the apps and other wine dlls, but our
d3d code doesn't support it yet.

I think in order to support one screen in a multihead setup properly we need
all the infrastructure that is needed to support a full dual-screen D3D
setup(e.g. like Supreme Commander supports). If the app doesn't use that
feature the second screen will stay black, but the first one should be set up
properly.