I'm going to take the above comment back to some extent though this bug & the above are interconnected.
The current gtk3 includes an upstream commit to fix this bug - (xi2: Reset scroll valuators on synthesized crossing events https://bugzilla.gnome.org/show_bug.cgi?id=690275 That commit combined with the prev & next bindings being set in Desktop- based Viewport Switching as previously described causes this bug & also causes jerky scrolling as described in bug 1184159 I can confirm that here by installing the gtk3 packages from here which reverts the xi2: Reset scroll valuators on synthesized crossing events commit https://launchpad.net/~mc3man/+archive/test-scroll/+packages ** Bug watch added: GNOME Bug Tracker #690275 https://bugzilla.gnome.org/show_bug.cgi?id=690275 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1200829 Title: Regression: Enabling "Desktop-based Viewport Switching" breaks scrollwheel scrolling in some windows with a usb mouse on a laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1200829/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
