[Nouveau] [Bug 66255] Xinerama 2x2 monitor configuration display issues

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66255

--- Comment #20 from Ilia Mirkin <imirkin at alum.mit.edu> ---
http://nouveau.freedesktop.org/wiki/MultiMonitorDesktop/

You only have 2 screens in your config, you need 4 screens for Xinerama to work
properly (one per monitor). Otherwise it makes sense that you get the scrolling
behaviour. Have you tried this with nouveau 1.0.9?

An alternative if you have xorg 1.14.3, is to use reverse prime. This is a bit
experimental and will likely be rather slow. (Basically using GPU0 to do all
the rendering and transfer the textures to GPU1 for actual display.) To do
that, take a look at http://nouveau.freedesktop.org/wiki/Optimus/ (it's
describing a different case, but some of the ideas carry over).

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