Добавил
xinput set-int-prop "Configured Mouse" "Wheel Emulation" 8 1
xinput set-int-prop "Configured Mouse" "Wheel Emulation Button" 8 2
А почему "Configured Mouse" ? У меня так:
user@home:~$ xinput list | grep TPPS
"TPPS/2 IBM TrackPoint" id=5 [XExtensionPointer]
user@home:~$ xinput list-props 5
Device 'TPPS/2 IBM TrackPoint':
Device Enabled: 1
Middle Button Emulation: 1
Middle Button Timeout: 50
Wheel Emulation Inertia: 10
Wheel Emulation: 1
Wheel Emulation X Axis: 6, 7
Wheel Emulation Y Axis: 4, 5
Wheel Emulation Timeout: 200
Wheel Emulation Button: 2
Drag Lock Buttons: 0
P.S. С bluetooth помогло - спасибо. Решение не очень красивое, но зато действенное.