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I installed Fedora 25 on my Thinkpad E470 and the Trackpoint works well. But I cannot use the middle button (the button between left and right mouse click) to scroll.

Referring to this source it should be possible.

I found several hints on how to enable this feature on Xorg but I have no clue how to get it work with wayland.

Can anybody help out?

Related button and trackpoint

OS Info:

 Fedora 25
 Gnome 3.22.2
 Wayland 1.12.0
 libinput 1.6.3

Update: Also libinput-debug-events does not recognize pressing the middle mouse button. libinput-list-devices prints the following:

Device:           TPPS/2 IBM TrackPoint
Kernel:           /dev/input/event8
Group:            8
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   *button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a
Glorfindel
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minils
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  • Does it work without Wayland (X11 session?). – Jakuje Mar 24 '17 at 18:15
  • It is not working out of the box on X11. – minils Mar 25 '17 at 10:39
  • I noticed that with `xev` the middle button is not recognized. – minils Mar 25 '17 at 11:05
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    If i remember well it worked for me with thinkpad e440s so it is probably sending some different events in the new thinkpad and needs an adjuatment for a driver. – Jakuje Mar 25 '17 at 18:04
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    nope. Not working on T440s with X11 (partially because I don't have the middle button). But on Dell Latitude E6440 it worked just fine (with Ubuntu 16.10) so there is certainly some difference in drivers. – Jakuje Mar 27 '17 at 14:56

2 Answers2

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As I found out the linux kernel had a bug that prevented Fedora from detecting the trackpoint. As far as I know only trackpoints from the new *70 series are affected.

The bug was fixed in Linux 4.13.

minils
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xf86-input-libinput - I'm running this one on X11, but can it be X related? If yes, try to install xWayland so you can run X related things on Wayland...

By the way, xev requires manual interaction while libinput (specifically for track-point middle button usage) does not. As I'm lazy, I use libinput.

Stephen Rauch
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Evo Dot
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  • There is no such package `xf86-input-libinput` in the fedora repos.. I mean I have `libinput` and `xorg-x11-drv-libinput` installed. But it doesn't help. – minils Jun 20 '17 at 21:27