you are right - I switched to metacity now - and everything just works - even faster. No artifacts anymore :-). Thanks for this advice! for everybody who does not know how to switch: just type in the terminal: gksudo gconf-editor and navigate to - apps - metacity - gerneral there choose "compositing_manager".
before this it is probably a good idea to switch of "Compize" - just go to the System-Menu, Appearance and at the tab "Visual Effects" choose "None" -- Evince has rendering artifacts when scrolling in a PDF doc https://bugs.launchpad.net/bugs/471251 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs