Created attachment 1109395 [details] LibreOffice Writer Scrolling Bounces or goes to the opposite direction Description of problem: When I use LibreOffice writer or calc with a multi-pages document and I try to scroll down, it scrolls a little then bounces back again, and sometimes it doesn't go to the scrolling direction, it goes in reverse (always going to the top, I tried the opposite: to go the top so I can get to the bottom but this doesn't happen). You may note also that the scrolling is interrupted by these bounces, so I can't scroll for a long time! Scrolling using the scroll bar itself is working just fine. Version-Release number of selected component (if applicable): libreoffice-gtk3-5.0.4.2-3.fc23.x86_64 How reproducible: Always Steps to Reproduce: 1. Open a document with multi-pages content in Writer. 2. Try to scroll down. 3. Actual results: The scroll bar bounces back a little bit, or goes entirely in the opposite direction (always to top). Expected results: Scrolling down goes down without interruption. Additional info: This is the GTK3 version under Xorg.
This issue happens under Wayland too but not the same. The reverse direction isn't under Wayland. The bounces are less and I can scroll a long time without bouncing. but the bouncing is still there. I don't know the reason, but I'm guessing that LibreOffice is so sensitive for scrolling and maybe it detects a very small bounces of my touchpad, though this doesn't happen with other GTK3 apps like Firefox, GNOME Notes, GNOME Files... etc.
Two finger scroll I guess. At least I see behaviour like that when using that mode.
The issue occurs on both: Two finger scroll, and Edge scroll. I tried it now with the mouse scroll and it works as expected. I've tried to use the updates-testing to download the new version of libreoffice-gtk but I couldn't find it. Waiting for it to be published.
libreoffice-5.0.5.1-7.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-2fca765923
libreoffice-5.0.5.1-7.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-2fca765923
I've tried the last update on testing and yes, it has fixed the issue of going to the opposite direction of scrolling. but it's still has the a small bouncing when I stop scrolling. The scrolling in general is not smooth in comparison to other GTK3 apps: Firefox and Document Viewer. I'll attach a video for comparison between LibreOffice and Document Viewer (Evince).
Created attachment 1122836 [details] LibreOffice Writer VS Document Viewer (Evince) This is a comparison between scrolling in LibreOffice Writer VS Document Viewer (Evince). Note that I use the same motion timing and distance but it differs in reaction. Note also that you will notice a small bounce when I stop scrolling in LibreOffice. This is 2-finger touchpad motion, BTW.
libreoffice-5.0.5.2-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.