1. Open attachment 186097 [details] 2. Try to scroll with mouse wheel focusing on the bottom area Repro on Windows and Linux, all VCL backends Bibisected with linux-64-7.6 to f2b97ecf340e1fd714c636060ae09382518a2b46 unmerge default and ScrollType::Drag cases for calc scrollbars
FWIW, STR: 1. Open attachment 186097 [details] from comment 0. 2. [CTRL]+[END] 3. Move wheel mouse to go _down_ > the main area scrolls _up_ anyway. When scrolling down, it looks as if the main area starts scrolling down for a split second, but it never actually goes down; it keeps scrolling up on every attempt.
ah, I see tools::Long ScrollBar::DoScroll( tools::Long nNewPos ) had an unconditional meScrollType = ScrollType::Drag; which ScrollAdaptor::DoScroll doesn't, so it was the case that "default" didn't arise in the past so a mouse wheel was handled by ScrollType::Drag after all despite that looking like it was for Drags only https://gerrit.libreoffice.org/c/core/+/150120
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/8bec0ff56c53e80be81a9f463fd1fd21ade33151 tdf#154679 unable to scroll with mouse wheel with frozen rows It will be available in 7.6.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
That commit never made it to 7.5, so fixed in trunk is sufficient.
*** Bug 154572 has been marked as a duplicate of this bug. ***