How to disable mouse wheel scrolling with xinput?

xinput says my mouse is id 11:

$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ VirtualBox mouse integration id=9 [slave pointer (2)]
⎜ ↳ ImExPS/2 Generic Explorer Mouse id=11 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Sleep Button id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]

Setting buttons 4 and 5 to 0 works:

$ xinput --set-button-map 11 1 2 3 0 0 6 7 8 9
$ xinput --get-button-map 11
1 2 3 0 0 6 7 8 9 

However, mouse wheel scrolling is not disabled. Any ideas what to do about it? Ubuntu 18.04.3.

ETA: Please note that the answer accepted in How to disable mouse wheel scroll in ubuntu 11.04 or 10.10? does not work, at least in my case.

ETA2: Added as per request:

$ xinput list-props 11
Device 'ImExPS/2 Generic Explorer Mouse': Device Enabled (127): 1 Coordinate Transformation Matrix (129): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 libinput Natural Scrolling Enabled (266): 0 libinput Natural Scrolling Enabled Default (267): 0 libinput Scroll Methods Available (274): 0, 0, 1 libinput Scroll Method Enabled (275): 0, 0, 0 libinput Scroll Method Enabled Default (276): 0, 0, 0 libinput Button Scrolling Button (277): 2 libinput Button Scrolling Button Default (278): 2 libinput Middle Emulation Enabled (279): 0 libinput Middle Emulation Enabled Default (280): 0 libinput Accel Speed (281): 0.000000 libinput Accel Speed Default (282): 0.000000 libinput Accel Profiles Available (283): 1, 1 libinput Accel Profile Enabled (284): 1, 0 libinput Accel Profile Enabled Default (285): 1, 0 libinput Left Handed Enabled (270): 0 libinput Left Handed Enabled Default (271): 0 libinput Send Events Modes Available (249): 1, 0 libinput Send Events Mode Enabled (250): 0, 0 libinput Send Events Mode Enabled Default (251): 0, 0 Device Node (252): "/dev/input/event4" Device Product ID (253): 2, 6 libinput Drag Lock Buttons (272): <no items> libinput Horizontal Scroll Enabled (273): 1

1 Answer

Remove libinput by

sudo apt remove 'xserver-xorg-input-libinput.*'

The mouse will be handled by evdev and all former solutions will work.