https://bugs.kde.org/show_bug.cgi?id=443404
--- Comment #20 from an.in...@free.fr --- Hi Mark, I bought a basic USB BT dongle before I saw your comment, and I've been lucky: okular now scrolls fine for me in page mode. The issue is okular specific, and at the application level how the mouse is connected should not matter: the only thing the application should see are the mouse wheel events. I don't know much in this area, but I fired `xev`, a small application showing X11 events (I'm using KDE with X11). The very weird thing is that I can't see a difference: the same set of events with similar content show up when I scroll the wheel by one click, whether the mouse is connected in BT or through the Logitech dongle. But when I scroll in okular in page mode, it's completely different: perfect with BT, but mostly nothing with the dongle expect a weird jump once in a while when I scroll like mad. I also checked the output of `xinput list-props` for both cases and except for the device name, node and product id all the other settings are the exact same. So I'm very puzzled... Not being an expert in GUI and mouse events I don't know what to check. But I have a set-up where it's very easy to switch between OK and KO: I just need to toggle the mouse between two sources. So if someone as suggestions on what to check to understand the difference and help fix this issue, as long as it's not too complex I'll try it. -- You are receiving this mail because: You are the assignee for the bug.
