Arch Linux

freefall

Member

Registered: 2015-12-06

Posts: 5

Enable pinch-to-zoom feature on Elantech touchpads

On my Acer Aspire E-573, I am able to use basic touchpad features like two-finger scrolling, 2-finger right click and 3-finger middle click. But these work only when the touchpad is configured as "Basic" in the BIOS.

But the pinch-to-zoom feature is not working, which I am guessing depends on the "Advanced" mode of Touchpad (Don't have Windows 8/10 so can't confirm that).

Has anybody been able to use these features with an Elantech Touchpad on Linux x64? I tried Ubuntu 14.04.3 and 15.10, without any success as well.

Output of

xinput list

:

⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ PixArt USB Optical Mouse                	id=10	[slave  pointer  (2)]
⎜   ↳ ETPS/2 Elantech Touchpad                	id=13	[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)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ HD WebCam                               	id=11	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=12	[slave  keyboard (3)]
    ↳ Acer WMI hotkeys                        	id=14	[slave  keyboard (3)]

Here's a related question I asked a few weeks ago, in which I was able to activate the Touchpad only after configuring the Touchpad in "Basic" mode from the BIOS.
https://bbs.archlinux.org/viewtopic.php … 9#p1601629

Output of

xinput list-props "ETPS/2 Elantech Touchpad"

Device 'ETPS/2 Elantech Touchpad':
	Device Enabled (138):	1
	Coordinate Transformation Matrix (140):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Tapping Enabled (291):	1
	libinput Tapping Enabled Default (292):	0
	libinput Tapping Drag Lock Enabled (293):	0
	libinput Tapping Drag Lock Enabled Default (294):	0
	libinput Accel Speed (274):	0.354839
	libinput Accel Speed Default (275):	0.000000
	libinput Natural Scrolling Enabled (279):	1
	libinput Natural Scrolling Enabled Default (280):	0
	libinput Send Events Modes Available (258):	1, 1
	libinput Send Events Mode Enabled (259):	0, 0
	libinput Send Events Mode Enabled Default (260):	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 Click Methods Available (295):	1, 1
	libinput Click Method Enabled (296):	1, 0
	libinput Click Method Enabled Default (297):	1, 0
	libinput Disable While Typing Enabled (298):	1
	libinput Disable While Typing Enabled Default (299):	1
	Device Node (261):	"/dev/input/event15"
	Device Product ID (262):	2, 14
	libinput Drag Lock Buttons (290):	<no items>
	libinput Horizonal Scroll Enabled (263):	1