I have exactly the same problem on Arch linux with libreoffice 3.5.2. I cannot use it on DISPLAY=:0.1, but it works fine on DISPLAY=:0.0. I have already filed a bug, but since they sent no notification by email, I cannot for the life of me locate it. This is massively annoying. I use lowriter on screen 2 and my web browser on screen 1 to write papers and such, and now I cant.
