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I pulled out an older Lenovo ThinkPad with a touchscreen (X220 tablet, Core i7) which had been running Ubuntu and I installed Arch Linux on it. Everything is fine except the touch screen does not work. It did work under the older version of Ubuntu I had installed (12.04).
I check several posts, but not find a solution yet. Here are some of the better resources I found:
[Wacom Touchscreen on ThinkPad X220 Tablet Has Disappeared / Kernel & Hardware / Arch Linux Forums][1]
[kernel 3.5.3-1 breaks wacom tablet on X220T \[WORKAROUND\] / Kernel & Hardware / Arch Linux Forums][2]
[Touchscreen - ArchWiki][3]
Here is the relevant info on this machine. The touchscreen is Wacom.
less /proc/bus/input/devices
I: Bus=0003 Vendor=056a Product=0090 Version=0110
N: Name="Wacom ISDv4 90 Pen"
P: Phys=usb-0000:00:1d.0-1.5/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/0003:056A:0090.0001/input/input7
U: Uniq=
H: Handlers=event4 mouse0
B: PROP=2
B: EV=b
B: KEY=1c03 0 0 0 0 0
B: ABS=1000003
I: Bus=0011 Vendor=0002 Product=000a Version=0000
N: Name="TPPS/2 IBM TrackPoint"
P: Phys=synaptics-pt/serio0/input0
S: Sysfs=/devices/platform/i8042/serio1/serio2/input/input14
U: Uniq=
H: Handlers=event18 mouse2
B: PROP=21
B: EV=7
B: KEY=70000 0 0 0 0
B: REL=3lsusb
Bus 002 Device 004: ID 056a:0090 Wacom Co., Ltd TPC90
# lsmod | grep wacom
wacom 114688 0
usbhid 57344 1 wacom
hid 139264 3 hid_generic,usbhid,wacom
led_class 16384 5 sdhci,wacom,input_leds,thinkpad_acpi,iwldvmdmesg | grep "[w|W]acom"
[ 5.403690] input: Wacom ISDv4 90 Pen as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/0003:056A:0090.0001/input/input7
[ 5.403775] wacom 0003:056A:0090.0001: hidraw0: USB HID v1.10 Mouse [Tablet ISD-V4] on usb-0000:00:1d.0-1.5/input0
# ls /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/0003:056A:0090.0001/input/input7
total 0
drwxr-xr-x 7 root root 0 Jun 10 17:05 .
drwxr-xr-x 3 root root 0 Jun 10 17:05 ..
drwxr-xr-x 2 root root 0 Jun 10 17:05 capabilities
lrwxrwxrwx 1 root root 0 Jun 10 17:20 device -> ../../../0003:056A:0090.0001
drwxr-xr-x 3 root root 0 Jun 10 17:05 event4
drwxr-xr-x 2 root root 0 Jun 10 17:05 id
-r--r--r-- 1 root root 4096 Jun 10 17:20 modalias
drwxr-xr-x 3 root root 0 Jun 10 17:05 mouse0
-r--r--r-- 1 root root 4096 Jun 10 17:20 name
-r--r--r-- 1 root root 4096 Jun 10 17:20 phys
drwxr-xr-x 2 root root 0 Jun 10 17:20 power
-r--r--r-- 1 root root 4096 Jun 10 17:20 properties
lrwxrwxrwx 1 root root 0 Jun 10 17:05 subsystem -> ../../../../../../../../../../class/input
-rw-r--r-- 1 root root 4096 Jun 10 17:20 uevent
-r--r--r-- 1 root root 4096 Jun 10 17:20 uniqpacman -Qi xf86-input-libinput
Name : xf86-input-libinput
Version : 0.27.1-1
Description : Generic input driver for the X.Org server based on libinput
Architecture : x86_64
URL : http://xorg.freedesktop.org/
Licenses : custom
Groups : xorg-drivers
Provides : None
Depends On : libinput>=1.2.0
Optional Deps : None
Required By : xorg-server
Optional For : None
Conflicts With : xorg-server<1.19.0 X-ABI-XINPUT_VERSION<24 X-ABI-XINPUT_VERSION>=25
Replaces : None
Installed Size : 87.00 KiB
Packager : Laurent Carlier
Build Date : Tue 10 Apr 2018 12:14:20 PM EDT
Install Date : Sat 21 Apr 2018 10:38:04 PM EDT
Install Reason : Installed as a dependency for another package
Install Script : No
Validated By : Signaturelibinput list-devices
Device: Wacom ISDv4 90 Pen
Kernel: /dev/input/event4
Group: 7
Seat: seat0, default
Size: 262x163mm
Capabilities: tablet
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: identity matrix
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Accel profiles: none
Rotation: n/amodinfo wacom
filename: /lib/modules/4.16.8-1-ARCH/kernel/drivers/hid/wacom.ko.xz
license: GPL
description: USB Wacom tablet driver
author: Vojtech Pavlik <vojtech@ucw.cz>
version: v2.00
srcversion: B48B4FFD10AA0DCD3863653
alias: hid:b0005g0101v0000056Ap*
alias: hid:b0018g0101v0000056Ap*
alias: hid:b0003g0101v0000056Ap*
alias: hid:b0003g*v000017EFp00006004
alias: hid:b0003g0101v0000056Ap00005002
alias: hid:b0003g0101v0000056Ap00005000
alias: hid:b0003g0101v0000056Ap00004004
alias: hid:b0003g0101v0000056Ap00004001
alias: hid:b0003g0101v0000056Ap0000037B
alias: hid:b0003g0101v0000056Ap0000037A
alias: hid:b0005g0101v0000056Ap00000361
alias: hid:b0005g0101v0000056Ap00000360
alias: hid:b0003g0101v0000056Ap00000343
alias: hid:b0003g0101v0000056Ap0000033E
alias: hid:b0003g0101v0000056Ap0000033D
alias: hid:b0003g0101v0000056Ap0000033C
alias: hid:b0003g0101v0000056Ap0000033B
alias: hid:b0003g0101v0000056Ap00000336
alias: hid:b0003g0101v0000056Ap00000335
alias: hid:b0003g0101v0000056Ap00000333
alias: hid:b0003g0101v0000056Ap00000331
alias: hid:b0003g0101v0000056Ap0000032F
alias: hid:b0003g0101v0000056Ap0000032C
alias: hid:b0003g0101v0000056Ap0000032B
alias: hid:b0003g0101v0000056Ap0000032A
alias: hid:b0003g0101v0000056Ap00000326
alias: hid:b0003g0101v0000056Ap00000325
alias: hid:b0003g0101v0000056Ap00000323
alias: hid:b0003g0101v0000056Ap00000319
alias: hid:b0003g0101v0000056Ap00000318
alias: hid:b0003g0101v0000056Ap00000317
alias: hid:b0003g0101v0000056Ap00000315
alias: hid:b0003g0101v0000056Ap00000314
alias: hid:b0003g0101v0000056Ap0000030E
alias: hid:b0003g0101v0000056Ap0000030C
alias: hid:b0003g0101v0000056Ap0000030A
alias: hid:b0003g0101v0000056Ap00000309
alias: hid:b0003g0101v0000056Ap00000307
alias: hid:b0003g0101v0000056Ap00000304
alias: hid:b0003g0101v0000056Ap00000303
alias: hid:b0003g0101v0000056Ap00000302
alias: hid:b0003g0101v0000056Ap00000301
alias: hid:b0003g0101v0000056Ap00000300
alias: hid:b0003g0101v0000056Ap0000012C
alias: hid:b0003g0101v0000056Ap00000116
alias: hid:b0003g0101v0000056Ap0000010F
alias: hid:b0003g0101v0000056Ap0000010E
alias: hid:b0003g0101v0000056Ap0000010D
alias: hid:b0003g0101v0000056Ap00000101
alias: hid:b0003g0101v0000056Ap00000100
alias: hid:b0003g0101v0000056Ap000000FB
alias: hid:b0003g0101v0000056Ap000000FA
alias: hid:b0003g0101v0000056Ap000000F8
alias: hid:b0003g0101v0000056Ap000000F6
alias: hid:b0003g0101v0000056Ap000000F4
alias: hid:b0003g0101v0000056Ap000000F0
alias: hid:b0003g0101v0000056Ap000000EF
alias: hid:b0003g0101v0000056Ap000000ED
alias: hid:b0003g0101v0000056Ap000000EC
alias: hid:b0003g0101v0000056Ap000000E6
alias: hid:b0003g0101v0000056Ap000000E5
alias: hid:b0003g0101v0000056Ap000000E3
alias: hid:b0003g0101v0000056Ap000000E2
alias: hid:b0003g0101v0000056Ap000000DF
alias: hid:b0003g0101v0000056Ap000000DE
alias: hid:b0003g0101v0000056Ap000000DD
alias: hid:b0003g0101v0000056Ap000000DB
alias: hid:b0003g0101v0000056Ap000000DA
alias: hid:b0003g0101v0000056Ap000000D8
alias: hid:b0003g0101v0000056Ap000000D7
alias: hid:b0003g0101v0000056Ap000000D6
alias: hid:b0003g0101v0000056Ap000000D5
alias: hid:b0003g0101v0000056Ap000000D4
alias: hid:b0003g0101v0000056Ap000000D3
alias: hid:b0003g0101v0000056Ap000000D2
alias: hid:b0003g0101v0000056Ap000000D1
alias: hid:b0003g0101v0000056Ap000000D0
alias: hid:b0003g0101v0000056Ap000000CE
alias: hid:b0003g0101v0000056Ap000000CC
alias: hid:b0003g0101v0000056Ap000000C7
alias: hid:b0003g0101v0000056Ap000000C6
alias: hid:b0003g0101v0000056Ap000000C5
alias: hid:b0003g0101v0000056Ap000000C4
alias: hid:b0003g0101v0000056Ap000000C2
alias: hid:b0003g0101v0000056Ap000000C0
alias: hid:b0005g0101v0000056Ap000000BD
alias: hid:b0003g0101v0000056Ap000000BC
alias: hid:b0003g0101v0000056Ap000000BB
alias: hid:b0003g0101v0000056Ap000000BA
alias: hid:b0003g0101v0000056Ap000000B9
alias: hid:b0003g0101v0000056Ap000000B8
alias: hid:b0003g0101v0000056Ap000000B7
alias: hid:b0003g0101v0000056Ap000000B5
alias: hid:b0003g0101v0000056Ap000000B4
alias: hid:b0003g0101v0000056Ap000000B3
alias: hid:b0003g0101v0000056Ap000000B2
alias: hid:b0003g0101v0000056Ap000000B1
alias: hid:b0003g0101v0000056Ap000000B0
alias: hid:b0003g0101v0000056Ap0000009F
alias: hid:b0003g0101v0000056Ap0000009A
alias: hid:b0003g0101v0000056Ap00000097
alias: hid:b0003g0101v0000056Ap00000093
alias: hid:b0003g0101v0000056Ap00000090
alias: hid:b0003g0101v0000056Ap00000084
alias: hid:b0005g0101v0000056Ap00000081
alias: hid:b0003g0101v0000056Ap0000006B
alias: hid:b0003g0101v0000056Ap0000006A
alias: hid:b0003g0101v0000056Ap00000069
alias: hid:b0003g0101v0000056Ap00000065
alias: hid:b0003g0101v0000056Ap00000064
alias: hid:b0003g0101v0000056Ap00000063
alias: hid:b0003g0101v0000056Ap00000062
alias: hid:b0003g0101v0000056Ap00000061
alias: hid:b0003g0101v0000056Ap00000060
alias: hid:b0003g0101v0000056Ap0000005E
alias: hid:b0003g0101v0000056Ap0000005D
alias: hid:b0003g0101v0000056Ap0000005B
alias: hid:b0003g0101v0000056Ap00000059
alias: hid:b0003g0101v0000056Ap00000057
alias: hid:b0003g0101v0000056Ap00000047
alias: hid:b0003g0101v0000056Ap00000045
alias: hid:b0003g0101v0000056Ap00000044
alias: hid:b0003g0101v0000056Ap00000043
alias: hid:b0003g0101v0000056Ap00000042
alias: hid:b0003g0101v0000056Ap00000041
alias: hid:b0003g0101v0000056Ap0000003F
alias: hid:b0003g0101v0000056Ap00000039
alias: hid:b0003g0101v0000056Ap00000038
alias: hid:b0003g0101v0000056Ap00000037
alias: hid:b0003g0101v0000056Ap00000035
alias: hid:b0003g0101v0000056Ap00000034
alias: hid:b0003g0101v0000056Ap00000033
alias: hid:b0003g0101v0000056Ap00000032
alias: hid:b0003g0101v0000056Ap00000031
alias: hid:b0003g0101v0000056Ap00000030
alias: hid:b0003g0101v0000056Ap0000002A
alias: hid:b0003g0101v0000056Ap00000029
alias: hid:b0003g0101v0000056Ap00000028
alias: hid:b0003g0101v0000056Ap00000027
alias: hid:b0003g0101v0000056Ap00000026
alias: hid:b0003g0101v0000056Ap00000024
alias: hid:b0003g0101v0000056Ap00000023
alias: hid:b0003g0101v0000056Ap00000022
alias: hid:b0003g0101v0000056Ap00000021
alias: hid:b0003g0101v0000056Ap00000020
alias: hid:b0003g0101v0000056Ap00000019
alias: hid:b0003g0101v0000056Ap00000018
alias: hid:b0003g0101v0000056Ap00000017
alias: hid:b0003g0101v0000056Ap00000016
alias: hid:b0003g0101v0000056Ap00000015
alias: hid:b0003g0101v0000056Ap00000014
alias: hid:b0003g0101v0000056Ap00000013
alias: hid:b0003g0101v0000056Ap00000012
alias: hid:b0003g0101v0000056Ap00000011
alias: hid:b0003g0101v0000056Ap00000010
alias: hid:b0003g0101v0000056Ap00000003
alias: hid:b0003g0101v0000056Ap00000000
depends: hid,usbhid,led-class
retpoline: Y
intree: Y
name: wacom
vermagic: 4.16.8-1-ARCH SMP preempt mod_unload modversions
parm: touch_arbitration: on (Y) off (N) (bool)xsetwacom --list devices
Wacom ISDv4 90 Pen stylus id: 10 type: STYLUS
Wacom ISDv4 90 Pen eraser id: 15 type: ERASERI think it should look more like this example from https://wiki.archlinux.org/index.php/Wacom_tablet
Wacom Bamboo 2FG 4x5 Pen stylus id: 8 type: STYLUS
Wacom Bamboo 2FG 4x5 Pen eraser id: 9 type: ERASER
Wacom Bamboo 2FG 4x5 Finger touch id: 13 type: TOUCH
Wacom Bamboo 2FG 4x5 Finger pad id: 14 type: PADLinux 4.16.8-1-ARCH #1 SMP PREEMPT Wed May 9 11:25:02 UTC 2018 x86_64 GNU/Linux
cat /dev/input/event4
No output while touching screen
[1]: https://bbs.archlinux.org/viewtopic.php?id=148073
[2]: https://bbs.archlinux.org/viewtopic.php?id=147887
[3]: https://wiki.archlinux.org/index.php/Touchscreen
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