in my case, when I'm moving the slides, the X server start to consume lot lot of CPU, and I can't do anything more... because the use of CPU it's too much and the X server are screwed up until it finish to move the Slide...
I have disabled GLX module, and I'm able to move the slides without problems...
don't know what happens with GLX
this is Minefield using OpenGL
and the one with OpenOffice moving the Slides.
Don't know if it's a problem of OpenOffice/LibreOffice deactivating "User Hardware Acceleration", https://bugs.freedesktop.org/show_bug.cgi?id=31610
Closing, not a bug, Firefox Minefield are implementing this feature, and OpenOffice/LibreOffice, it was an option called "Antialiasing", deactivating it fixes the problem, but don't know if it a bad implementation of OO/LO or a bug in the features used... anyway, closing, "Antialiasing" option ít's a feature of LO/OO, so opening bug there: