yuri69
n00b
Joined: 17 Apr 2017
Posts: 15
Location: /home/lxuser
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 Posted: Mon Apr 17, 2017 4:04 pm Post subject: Mismatch of TrackPoint buttons on ThinkPad T430 |
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Howdy,
I got a Lenovo ThinkPad T430 which should be a quite common and supported laptop nowadays. I got a standard systemd & Gnome desktop installation.
My problem are the TrackPoint buttons - there is that rubber pointy thing + left; mid; right buttons just below the keyboard. First time I GDMed to Gnome I noticed these buttons acted weird. Firefox was unusable - closing tabs, duplicating tabs, etc. Gnome UI was responding via flicking when clicked an item.
I discovered that the issue is a mismatch in left and mid buttons. In xinput test the response on a single left button click:
| Code: | button press 1
button press 1
button release 2
button release 2
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OTOH, a 1sec long "click" with the same left button:
| Code: | button press 1
button release 1
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The same sequence with mid button is the same as with left button:
| Code: | button press 1
button press 1
button release 2
button release 2
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There is a mismatch in signaling the buttons.
I wanted to have the scrolling functionality with the TrackPoint so I used INPUT_DEVICES="libinput" first. Then I moved to classic INPUT_DEVICES="udev synaptics", no change though.
The only way I worked this around was disabling the mid button completely via:
| Code: | | xinput set-button-map 1 0 3 4 5 6 7 |
However, scrolling functionality is still broken, since the mid button keeps emitting a button press 1.
My uname -a:
| Code: | Linux gentoo 4.4.39-gentoo #5 SMP Sun Apr 16 00:55:20 -00 2017 x86_64 Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz GenuineIntel GNU/Linux[/quote]
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My xorg.conf.d related file:
| Code: | Section "InputClass"
Identifier "ThinkPad TrackPoint"
Driver "evdev"
MatchProduct "TPPS/2 IBM TrackPoint"
MatchDevicePath "/dev/input/event*"
Option "EmulateWheel" "true"
Option "EmulateWheelButton" "2"
Option "XAxisMapping" "6 7"
Option "YAxisMapping" "4 5"
Option "ButtonMapping" "1 0 3 4 5 6 7"
EndSection |
What else should I investigate? I can provide dmesg, etc.
Thanks! |
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Kernel & Hardware
