https://bugs.kde.org/show_bug.cgi?id=380511
Bug ID: 380511 Summary: Commit e0a623414cfb34df8e3ae717d720f7a0f952b2c8 worsened scrolling behavior for both mice and touchpads Product: kirigami Version: unspecified Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: general Assignee: notm...@gmail.com Reporter: pointedst...@zoho.com Target Milestone: Not decided Commit e0a623414cfb34df8e3ae717d720f7a0f952b2c8 was introduced to fix https://bugs.kde.org/show_bug.cgi?id=376910. Before this commit, scrolling with a mouse wheel was fine, but scrolling with a touchpad resulted in acceleration being continuously increased. With commit e0a623414cfb34df8e3ae717d720f7a0f952b2c8, scrolling with both a mouse wheels and a touchpad results in the view scrolling one line at a time at a constant speed. For a mouse wheel, this is far too slow and ignores the systemwide setting (System Settings > Input Devices > Mouse > Advanced > Mouse wheel scrolls by). For a touchpad, this is still *effectively* too slow; it should scroll in one-pixel increments, but with the speed determined by the speed of the finger motion. You can see the problem in Discover on a machine with Kirigami 2.1. The scrolling behavior is poor for both input devices. It was mentioned in https://bugs.kde.org/show_bug.cgi?id=376910 that the QuickControls ScrollView has the correct behavior for both devices out of the box in QT 5.9 onwards. QT 5.9 was just released a few days ago: http://blog.qt.io/blog/2017/05/31/qt-5-9-released/ Maybe we should redirect our effort to use QT 5.9 which has appropriate behavior rather than try to fix it manually and stay with an old QT version. -- You are receiving this mail because: You are watching all bug changes.