Public bug reported: I am running ubuntu 18.04 and the okular version is 1.4.3
When I try to use touchpad to scroll, okular can work well at most of time but sometimes it randomly jumps several lines (in most cases, it jumps half page). If I am scrolling upwards, it jumps upwards. Or it jumps downwards if I initially scrolling downwards. I find that the old verion okular in ubuntu 16.04 is free of this bug. I also find it has been reported and in the first link below, you can see the bug demo video. https://bugs.kde.org/show_bug.cgi?id=389947 https://bugreports.qt.io/browse/QTBUG-49294 https://bugreports.qt.io/browse/QTBUG-40829?jql=text%20~%20%22scroll%20touchpad%22 This bug seems due to a qt bug and will take time to be solved completely. Does anyone know how to avoid its influence currently since it is really annoy. I tried to downgrade my current okular to old verion but it seems that I can not do that in ubuntu 18.04 and I have to go with the 1.4.3 version. If anyone knows how to solve it, please tell me. Really appreciated! ** Affects: okular (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1808053 Title: touchpad scrolling: Okular suddenly jumps several lines downwards or upwards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/okular/+bug/1808053/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs