I too have a Toshiba R100 with the XP4m32 Trident graphics chip, I'm getting the same problem with scrolling. It seems ok when scrolling down a list or page but when scrolling up it doesn't update properly. Things get worse when I drag a window, the whole pane gets broken up in diagonal colours corresponding to the window theme. I've included some screenshots.
** Attachment added: "Two png's of scroll fault" http://librarian.launchpad.net/4947637/scroll_fault.tar -- scrolling in windows makes content weired https://launchpad.net/bugs/67620 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
