https://bugs.kde.org/show_bug.cgi?id=428122
--- Comment #1 from goebbe <christian.goe...@mailbox.org> --- Collecting addidional information on the issue: https://forums.virtualbox.org/viewtopic.php?f=3&t=83614#p431647 It seems libinput *ignores* scroll button events from one device while another device sends movement events, which is the case for mouse integration: the virtual touchpad sends (tons of) movement updates, while the virtual ps/2 mouse scrollwheel sends button events. With mouse integration disabled, both events are sent by the same virtual ps/2 mouse. Most notably, both libinput-debug-events and xev receive events correctly in all cases. This explains why the first workaround (disabling VirtualBox mouse integration) works. The following points to another workaround: https://superuser.com/questions/1270811/inconsistent-and-erratic-mouse-wheel-in-linux-while-moving-the-mouse-pointer Second workaround - as decribed on superuser.com: Replace libinput by xf86-input-evdev in combination with imwheel I hope this helps. -- You are receiving this mail because: You are watching all bug changes.
