I am not sure how easy it is to reproduce so some details here: evince is in "fit width" view and the file has no index (yuck) so thumbnails are displayed instead.
The thumbnail view is wider than the sidebar. Pressing PgDn results in scrolling of the main page view. Every time a page scrolls out of view the position in the thumbnail list is updated so that the current page is selected and the thumbnail view is scrolled from left to right or from right to left. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799239 Title: page thumbnails keep jumping left and right while scrolling pages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evince/+bug/799239/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs