Although Elan Touchpad is listed in the output of xinput, "0" in
"hid_elan 16384 0" shows hid_elan is not being used. Is there an entry
named "*:04F3:3140.*" under /sys/bus/hid/drivers/hid-elan/?
> plus I found that this device is already defined in hid-elan.c
I couldn't find the string 0x3140. Do you mean the device is defined in
another way?
Yesterday, I used evtest to monitor the Synaptics touchpad and was
surprised to find when hid_multitouch is taking over the device,
multiple fingers (up to 4) touching could be detected,
```
$ sudo evtest
/dev/input/event14: MSFT0001:00 06CB:7F28 Mouse
/dev/input/event15: MSFT0001:00 06CB:7F28 Touchpad
Select the device event number [0-21]: 15
Input driver version is 1.0.1
Input device ID: bus 0x18 vendor 0x6cb product 0x7f28 version 0x100
Input device name: "MSFT0001:00 06CB:7F28 Touchpad"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 272 (BTN_LEFT)
Event code 325 (BTN_TOOL_FINGER)
Event code 328 (BTN_TOOL_QUINTTAP)
Event code 330 (BTN_TOUCH)
Event code 333 (BTN_TOOL_DOUBLETAP)
Event code 334 (BTN_TOOL_TRIPLETAP)
Event code 335 (BTN_TOOL_QUADTAP)
Event type 3 (EV_ABS)
Event code 0 (ABS_X)
Value 0
Min 0
Max 1224
Resolution 12
Event code 1 (ABS_Y)
Value 0
Min 0
Max 804
Resolution 12
Event code 47 (ABS_MT_SLOT)
Value 0
Min 0
Max 4
Event code 53 (ABS_MT_POSITION_X)
Value 0
Min 0
Max 1224
Resolution 12
Event code 54 (ABS_MT_POSITION_Y)
Value 0
Min 0
Max 804
Resolution 12
Event code 55 (ABS_MT_TOOL_TYPE)
Value 0
Min 0
Max 2
Event code 57 (ABS_MT_TRACKING_ID)
Value 0
Min 0
Max 65535
Event type 4 (EV_MSC)
Event code 5 (MSC_TIMESTAMP)
Properties:
Property type 0 (INPUT_PROP_POINTER)
Property type 2 (INPUT_PROP_BUTTONPAD)
Testing ... (interrupt to exit)
Event: time 1597225994.180980, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID),
value 0
Event: time 1597225994.180980, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X),
value 765
Event: time 1597225994.180980, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y),
value 220
Event: time 1597225994.180980, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1597225994.180980, type 1 (EV_KEY), code 325 (BTN_TOOL_FINGER),
value 1
Event: time 1597225994.180980, type 3 (EV_ABS), code 0 (ABS_X), value 765
Event: time 1597225994.180980, type 3 (EV_ABS), code 1 (ABS_Y), value 220
Event: time 1597225994.180980, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 0
Event: time 1597225994.180980, -------------- SYN_REPORT ------------
```
The only issue is the pointer won't move when I my fingers move on the
touchpad. Compared with a working touchpad, the only difference is the
lack of ABS_PRESSURE events. If I use hid-rmi, these ABS_PRESSURE events
would be generated. It seems ABS_PRESSURE events are needed to make the
pointer move. If I could let hid_multitouch collect ABS_PRESSURE events,
then the touchpad could work.
So I'm curious if hid_multitouch also handle your touchpad device by default,
could you run `sudo evtest` on the device to see what kinds of events could be
generated?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1887190
Title:
MSFT Touchpad not working on Lenovo Legion-5 15ARH05
Status in linux package in Ubuntu:
Confirmed
Status in xserver-xorg-input-libinput package in Ubuntu:
Confirmed
Status in linux package in Arch Linux:
Confirmed
Status in linux package in Fedora:
Confirmed
Bug description:
Hello
The MSFT touchpad of this Lenovo Legion-5 15ARH05 laptop is not reacting at
all (pointer and click never move when touchpad is touched). This has been
reported by other users in various websites, with various linux systems
including other Ubuntu systems, but I saw no launchpad bug so I post one.
Example of websites covering the issue :
- https://askubuntu.com/questions/1253830/lenovo-legion-5-touchpad (exactly
the same laptop)
- https://www.linux.org/threads/lenovo-legion-5-touchpad.29536/ (similar
laptop)
xinput indentifies it as MSFT0001:00 04F3:3140
Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer
(2)]
⎜ ↳ MSFT0001:00 04F3:3140 Touchpad id=17 [slave pointer
(2)]
⎜ ↳ MSFT0001:00 04F3:3140 Mouse id=16 [slave pointer
(2)]
⎜ ↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=12 [slave
pointer (2)]
⎜ ↳ Logitech USB Optical Mouse id=11 [slave pointer
(2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave
keyboard (3)]
↳ Ideapad extra buttons id=15 [slave
keyboard (3)]
↳ Power Button id=6 [slave
keyboard (3)]
↳ Integrated Camera: Integrated C id=10 [slave
keyboard (3)]
↳ Video Bus id=7 [slave
keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=19 [slave
keyboard (3)]
↳ Power Button id=9 [slave
keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Wireless Radio Control id=13 [slave
keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Keyboard id=14 [slave
keyboard (3)]
↳ AT Translated Set 2 keyboard id=18 [slave
keyboard (3)]
↳ Video Bus id=8 [slave
keyboard (3)]
Thanks a lot for your time. It does not help, but I can confirm what
was reported on askubuntu by another user : the touchpad does work on
Windows.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-40-generic 5.4.0-40.44
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nicolas 1567 F.... pulseaudio
/dev/snd/controlC1: nicolas 1567 F.... pulseaudio
/dev/snd/controlC2: nicolas 1567 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 10 20:14:25 2020
InstallationDate: Installed on 2020-07-02 (8 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 82B5
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-40-generic
root=UUID=d8898017-2821-434e-ab52-fec76ac93106 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-40-generic N/A
linux-backports-modules-5.4.0-40-generic N/A
linux-firmware 1.187.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/12/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: EUCN19WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Legion 5 15ARH05
dmi.modalias:
dmi:bvnLENOVO:bvrEUCN19WW:bd05/12/2020:svnLENOVO:pn82B5:pvrLenovoLegion515ARH05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoLegion515ARH05:
dmi.product.family: Legion 5 15ARH05
dmi.product.name: 82B5
dmi.product.sku: LENOVO_MT_82B5_BU_idea_FM_Legion 5 15ARH05
dmi.product.version: Lenovo Legion 5 15ARH05
dmi.sys.vendor: LENOVO
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-07-02 (12 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
Tags: focal
Uname: Linux 5.8.0-050800rc5-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
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