Hi all,
May I answer the questions from OrsoBruno and deano_ferrari in one post?
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“Erratic” is much worse that just missing one click! I can roll 120degrees (up or down) before anything will happen sometimes. Then it will move a few lines and I have to roll again.
An interesting point, I don’t know if it is relevant or helps but if I press down (center button press) and then roll (not easy!!) at the same time. Scrolling works as I think it should.
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xinput information. First I needed to find <device_ID>
linux-a6cr:~ # xinput list
⎡ 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)]
linux-a6cr:~ #
2a. Now xinput with libinput active:
linux-a6cr:~ # xinput list-props 11
Device 'ImExPS/2 Generic Explorer Mouse':
Device Enabled (119): 1
Coordinate Transformation Matrix (121): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Accel Speed (294): 0.000000
libinput Accel Speed Default (295): 0.000000
libinput Accel Profiles Available (296): 1, 1
libinput Accel Profile Enabled (297): 1, 0
libinput Accel Profile Enabled Default (298): 1, 0
libinput Natural Scrolling Enabled (283): 0
libinput Natural Scrolling Enabled Default (284): 0
libinput Send Events Modes Available (264): 1, 0
libinput Send Events Mode Enabled (265): 0, 0
libinput Send Events Mode Enabled Default (266): 0, 0
libinput Left Handed Enabled (285): 0
libinput Left Handed Enabled Default (286): 0
libinput Scroll Methods Available (287): 0, 0, 1
libinput Scroll Method Enabled (288): 0, 0, 0
libinput Scroll Method Enabled Default (289): 0, 0, 0
libinput Button Scrolling Button (290): 2
libinput Button Scrolling Button Default (291): 2
libinput Middle Emulation Enabled (299): 0
libinput Middle Emulation Enabled Default (300): 0
Device Node (267): "/dev/input/event1"
Device Product ID (268): 2, 6
libinput Drag Lock Buttons (292): <no items>
libinput Horizontal Scroll Enabled (293): 1
linux-a6cr:~ #
2b. And again with evdev active
linux-a6cr:~ # xinput list-props 11
Device 'ImExPS/2 Generic Explorer Mouse':
Device Enabled (119): 1
Coordinate Transformation Matrix (121): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (270): 0
Device Accel Constant Deceleration (271): 1.000000
Device Accel Adaptive Deceleration (272): 1.000000
Device Accel Velocity Scaling (273): 10.000000
Device Product ID (264): 2, 6
Device Node (265): "/dev/input/event1"
Evdev Axis Inversion (274): 0, 0
Evdev Axes Swap (276): 0
Axis Labels (277): "Rel X" (129), "Rel Y" (130), "Rel Horiz Wheel" (297), "Rel Vert Wheel" (298)
Button Labels (278): "Button Left" (122), "Button Middle" (123), "Button Right" (124), "Button Wheel Up" (125), "Button Wheel Down" (126), "Button Horiz Wheel Left" (127), "Button Horiz Wheel Right" (128), "Button Side" (295), "Button Extra" (296), "Button Unknown" (267), "Button Unknown" (267), "Button Unknown" (267), "Button Unknown" (267)
Evdev Scrolling Distance (279): 1, 1, 1
Evdev Middle Button Emulation (280): 0
Evdev Middle Button Timeout (281): 50
Evdev Third Button Emulation (282): 0
Evdev Third Button Emulation Timeout (283): 1000
Evdev Third Button Emulation Button (284): 3
Evdev Third Button Emulation Threshold (285): 20
Evdev Wheel Emulation (286): 0
Evdev Wheel Emulation Axes (287): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (288): 10
Evdev Wheel Emulation Timeout (289): 200
Evdev Wheel Emulation Button (290): 4
Evdev Drag Lock Buttons (291): 0
linux-a6cr:~ #
I pass this information on with no comment - I’m afraid it means next to nothing to me. Dho…
Regards, Martin