Can't scroll vertically nor horizontally with mouse clicks

If there are many rows and columns in a data grid it's not possible to scroll vertically or horizontally. Neither by clicking below/beside the bar representing the visible part of the result set nor by clicking onto the arrows for moving up/down/left/right. It's only possible to scroll vertically by means of the touch pad.

It's HeidiSQL Linux Version 12.6.1.1 deb package running on QubesOS Version Linux home-access 6.19.5-1.qubes.fc41.x86_64 #1 SMP PREEMPT_DYNAMIC Mon Mar 2 13:25:40 UTC 2026 x86_64 GNU/Linux No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 13 (trixie) Release: 13 Codename: trixie

Scrolling is possible in SQL Editor Tab, but not in Database/Table tree view and function filter view.

Downloaded Linux deb Version 12.7.1.1 and noticed, that vertical scrolling is working if there are more lines than being displayed. If less then lines are scrolled horizontally. I'm using 2 fingers method of my touch pad of my laptop which usually works fine in other apps. Even, horizontal scrollbar does not reponds to clicks in the area in order to scoll left or right.

Just noticed the neither vertical nor horizontal scrolling is possible by mouse clicks in the corresponding area of scroll bar

There should be scrollbars for both horizontally and vertically. Only there is no wordwrap feature for disabling the horizontal one.

There are scrollbars, at least visible, but there is no (re)action if clicking in the corresponding area.

Can you mark the relevant areas in a screenshot? I cannot reproduce an issue like that.

Hello,

If I could help: I confirm the issue.

When one clicks on an empty zone of the scroll zone, or on one of the arrows up an donwn the bar, the windows don't move as they should. The only way to have them move is to click and hold on the scrollbar itself.

I hope this helps.

Can you mark the relevant areas in a screenshot? I cannot reproduce an issue like that. I tried to do it, but I can find an appropriate software on my laptop. Furthermore I noticed a quite strange behaviour when trying to build a repro. The sql query part works fine, in the resultset section it's not possible to move the window left or right by even clicking the "empty" area nor move the bar (click, hold an move). The only way to move left or right is to click a cell and move by left/right arrow cell by cell.

Thanks to @FeverBeaver, that's it

The gtk2 build does not have that issue, but I can reproduce it now in the qt6 build, which is also used in the deb and rpm packages. And only the VirtualTree instances seem to be affected, all of them, but no other control.

Possible cause is this one: https://gitlab.com/freepascal.org/lazarus/lazarus/-/work_items/34328

The gtk2 build does not have that issue, but I can reproduce it now in the qt6 build, which is also used in the deb and rpm packages. And only the VirtualTree instances seem to be affected, all of them, but no other control.

Thanks for your reply and I'm happy that you reproduce it:-)