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toucan

Member

Registered: 2013-08-26

Posts: 13

Wacom driver and touchscreen

I have a Lenovo Thinkpad Yoga L390, which has a Wacom touchscreen that responds to both a stylus and touch. Originally, this was being handled by libinput as a generic  device. This meant that xsetwacom list dev would output an empty list, that touch was handled correctly, but that eraser events from the stylus were not detected. To fix the eraser events, I copied the default 70-wacom.conf provided by xf86-input-wacom from /usr/share/X11/xorg.conf.d to /etc/X11/xorg.conf.d, so that the screen is now handled by the wacom driver. This means that all events from the stylus are being handled correctly, but gestures on the touchscreen, such as pinching, no longer work correctly.

Is there a way for me to have the wacom driver handle the stylus and eraser while libinput handles touch?
Alternatively, is there a way to make the wacom driver handle touch events in a similar way to how libinput handles them?

Thank you

$ xsetwacom list dev
Wacom Pen and multitouch sensor Finger touch	id: 11	type: TOUCH     
Wacom Pen and multitouch sensor Pen stylus	id: 12	type: STYLUS    
Wacom Pen and multitouch sensor Pen eraser	id: 24	type: ERASER 

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 056a:5158 Wacom Co., Ltd 
Bus 001 Device 002: ID 04f2:b604 Chicony Electronics Co., Ltd 
Bus 001 Device 004: ID 8087:0aaa Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Default 70-wacom.conf file.

# Some of the below input classes appear 3x times, once for each of
# "tablet", "touchscreen", and "touchpad" to ensure that the Wacom
# driver is not accidentally bound to other types of hardware that
# Wacom has made which are not handled by the wacom driver (e.g the
# Wacom Bluetooth Keyboard)
#
# [url]https://sourceforge.net/p/linuxwacom/bugs/294/[/url]

Section "InputClass"
        Identifier "Wacom USB tablet class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTablet "true"
        Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom USB touchscreen class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchscreen "true"
        Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom USB touchpad class"
        MatchUSBID "056a:*"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchpad "true"
        Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom tablet class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTablet "true"
	Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom touchscreen class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTouchscreen "true"
	Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom touchpad class"
	MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
	MatchDevicePath "/dev/input/event*"
	MatchIsTouchpad "true"
	Driver "wacom"
EndSection

# Serial Wacom devices should always be one of tablet, touchscreen, or
# touchpad so we can safely get away with just one match section in
# these cases
Section "InputClass"
        Identifier "Wacom PnP device class"
        MatchPnPID "WACf*|WCOM*|WACM*|FUJ02e5|FUJ02e7|FUJ02e9"
        MatchDevicePath "/dev/input/event*"
        Driver "wacom"
EndSection

Section "InputClass"
	Identifier "Wacom serial class"
	MatchProduct "Serial Wacom Tablet"
	Driver "wacom"
EndSection

Section "InputClass"
        Identifier "Wacom serial class identifiers"
        MatchProduct "WACf|FUJ02e5|FUJ02e7|FUJ02e9"
        Driver "wacom"
EndSection

# Hanwang tablets
Section "InputClass"
	Identifier "Hanwang class"
	MatchProduct "Hanwang"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
EndSection

# Waltop tablets
Section "InputClass"
	Identifier "Waltop class"
	MatchProduct "WALTOP"
	MatchIsTablet "on"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
EndSection

# N-Trig Duosense Electromagnetic Digitizer
Section "InputClass"
	Identifier "Wacom N-Trig class"
	MatchProduct "HID 1b96:0001|N-Trig Pen|N-Trig DuoSense"
	MatchDevicePath "/dev/input/event*"
	Driver "wacom"
	Option "Button2" "3"
EndSection

# Dell Canvas 27 (touch part is an Advanced Silicon, pen part a Wacom)
Section "InputClass"
        Identifier "Dell Canvas 27 Touch"
        MatchUSBID "2575:0204"
        MatchDevicePath "/dev/input/event*"
        MatchIsTouchscreen "true"
        Driver "wacom"
EndSection

Last edited by toucan (2019-08-15 22:00:42)