Bug 1275460 - 3 fingers tap middle click not working on my touchpad
3 fingers tap middle click not working on my touchpad
Product: Fedora
Classification: Fedora
Component: libinput (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Benjamin Tissoires
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2015-10-26 21:03 EDT by fabien.chaillou@gmail.com
Modified: 2016-08-12 15:43 EDT (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2016-08-08 01:13:30 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
evemu-record (2.14 KB, text/plain)
2015-10-26 22:59 EDT, fabien.chaillou@gmail.com
no flags Details
Complete evemu record (5.91 KB, text/plain)
2015-11-01 21:39 EST, fabien.chaillou@gmail.com
no flags Details
Output of dmesg (96.32 KB, text/plain)
2015-11-02 21:18 EST, fabien.chaillou@gmail.com
no flags Details

External Trackers
Tracker ID Priority Status Summary Last Updated
FreeDesktop.org 93583 None None None 2016-01-08 12:05 EST

  None (edit)
Description fabien.chaillou@gmail.com 2015-10-26 21:03:16 EDT
Description of problem:
Before fedora 22 and the migration to libinput, 3 finger middle-click worked on my laptop but since then it stopped.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Make a 3 finger tap on a link in firefox

Actual results:
Nothing happens

Expected results:
Link is opened in a new tab

Additional info:
Here is the ouput of xinput list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ ETPS/2 Elantech Touchpad                	id=11	[slave  pointer  (2)]

Here is xinput list-props 11
Device 'ETPS/2 Elantech Touchpad':
	Device Enabled (136):	1
	Coordinate Transformation Matrix (138):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Tapping Enabled (273):	1
	libinput Tapping Enabled Default (274):	0
	libinput Tapping Drag Lock Enabled (275):	0
	libinput Tapping Drag Lock Enabled Default (276):	0
	libinput Accel Speed (277):	-0.414286
	libinput Accel Speed Default (278):	0.000000
	libinput Natural Scrolling Enabled (279):	0
	libinput Natural Scrolling Enabled Default (280):	0
	libinput Send Events Modes Available (257):	1, 1
	libinput Send Events Mode Enabled (258):	0, 0
	libinput Send Events Mode Enabled Default (259):	0, 0
	libinput Left Handed Enabled (281):	0
	libinput Left Handed Enabled Default (282):	0
	libinput Scroll Methods Available (283):	1, 1, 0
	libinput Scroll Method Enabled (284):	1, 0, 0
	libinput Scroll Method Enabled Default (285):	1, 0, 0
	libinput Disable While Typing Enabled (286):	1
	libinput Disable While Typing Enabled Default (287):	1
	Device Node (260):	"/dev/input/event5"
	Device Product ID (261):	2, 14
	libinput Drag Lock Buttons (288):	<no items>
	libinput Horizonal Scroll Enabled (262):	1

And here is udevadm info --query=property --name=/dev/input/event5

Hopes this helps !
Comment 1 Peter Hutterer 2015-10-26 22:23:45 EDT
record such a tap with evemu-record please and attach the output here
Comment 2 fabien.chaillou@gmail.com 2015-10-26 22:59 EDT
Created attachment 1086704 [details]

Here is the record fro, evemu.
Comment 3 Peter Hutterer 2015-11-01 20:19:32 EST
Please don't cut the recording, I need the top part of the recording too (with the device description). Without that, I cannot emulate the device here.

What laptop is this btw, does the device have physical buttons?
Comment 4 fabien.chaillou@gmail.com 2015-11-01 21:39 EST
Created attachment 1088438 [details]
Complete evemu record

Oh sorry about the previous file.
I was using the options for evemu record to send the data to a file, however it seems it does so without copying the header into that same file.

This new file should contain everything that is needed.

By the way, my laptop is a samsung np530u03b, it is a 2012 model (well i bought it then, might be a bit older though).
And yes, it has physical button for left and right click.
I didn't think about testing it until now but i confirm that clicking both physical buttons at the same time generates a middle click.

Comment 5 Peter Hutterer 2015-11-01 23:30:32 EST
(In reply to fabien.chaillou@gmail.com from comment #4)
> Oh sorry about the previous file.
> I was using the options for evemu record to send the data to a file, however
> it seems it does so without copying the header into that same file.

oops, that is a bug in evemu then. I'll get that fixed, thanks.

as for the 3-finger tapping (note: 3-finger click has a different meaning, see http://wayland.freedesktop.org/libinput/doc/latest/clickpad_softbuttons.html#clickfinger), that seems to be a kernel bug:
the second touch point has a position of 0/0 and gets detected (and ignored) as a palm touch. So unless you really had your finger in the top-left corner, that would be bug in the kernel. Benjamin?
Comment 6 Benjamin Tissoires 2015-11-02 09:18:36 EST
Yep, looks like there is a problem in the kernel. Can you attach a dmesg so that we know which version of the Elan touchpad you are using?
Comment 7 fabien.chaillou@gmail.com 2015-11-02 21:18 EST
Created attachment 1088790 [details]
Output of dmesg

Here is the ouput of dmesg.
I can't however tell me which version of the touchpad i have, sorry !

Hopes it helps.
Comment 8 fabien.chaillou@gmail.com 2015-11-22 21:04:04 EST
I updated to fedora 23 and it still happens.
Can i be of any help on anything ?
Comment 9 Benjamin Tissoires 2016-01-08 12:05:58 EST
Just a FYI, I have been tracking recently the exact same problem upstream (fdo bug #93583).

I don't think I will be able to add a second slot, but the touchpad should report itself as semi_mt.

Then, I think we should ignore palm detection for semi-mt devices in libinput.
Comment 10 Peter Hutterer 2016-08-08 01:13:30 EDT
This should've been fixed with the libinput 1.2 release (see fdo bg in comment 9). If it's still broken please re-open.
Comment 11 fabien.chaillou@gmail.com 2016-08-12 15:43:41 EDT
Hello Peter,
I confirm this is fixed for me.

Thanks !

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