Touchpad not detecting in Linux

Bug #1825718 reported by DIPIN P JOSEPH on 2019-04-21
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

This issue was observed in laptop -"iBall-Aer3" which has a touch-pad with integrated fingerprint scanner. Both works very well in Windows 10, but not in Linux.
Please Check.
Any help is highly appreciated.

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-5.0.0-13-generic 5.0.0-13.14
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
 /dev/snd/controlC0: dipin 1204 F.... pulseaudio
 /dev/snd/controlC1: dipin 1204 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 21 18:12:35 2019
InstallationDate: Installed on 2019-04-21 (0 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
MachineType: iBall Aer3
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-13-generic root=UUID=53642f8a-ea5c-46e8-bde2-b1744102311b ro quiet splash vt.handoff=1
 linux-restricted-modules-5.0.0-13-generic N/A
 linux-backports-modules-5.0.0-13-generic N/A
 linux-firmware 1.178
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install) 07/26/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: YZ-BI-13.3-S133AR110-A55H-040-G
dmi.board.asset.tag: Default string Aer3
dmi.board.vendor: iBall
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 9
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrYZ-BI-13.3-S133AR110-A55H-040-G:bd07/26/2017:svniBall:pnAer3:pvrDefaultstring:rvniBall:rnAer3:rvrDefaultstring:cvnDefaultstring:ct9:cvrDefaultstring: Default string Aer3
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: iBall

DIPIN P JOSEPH (dipinpjoseph) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Hui Wang ( wrote :

Please add psmouse.dyndbg=+p to the bootargs, boot the kernel, then upload the dmesg.

After that, add psmouse.proto=bare to the booargs, boot the kernel test if the touchpad can work or not.

DIPIN P JOSEPH (dipinpjoseph) wrote :

Hi Hui Wang,

Thanks for the quick reply. I'm new to this place and i believe changes has to be done in "/etc/default/grub"

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash psmouse.dyndbg=+p"

One observation after boot-up;

dmesg | grep "i2c_hid"
[ 3.016774] i2c_hid i2c-SYNA3602:00: i2c-SYNA3602:00 supply vdd not found, using dummy regulator
[ 3.016799] i2c_hid i2c-SYNA3602:00: Linked as a consumer to regulator.0
[ 3.016800] i2c_hid i2c-SYNA3602:00: i2c-SYNA3602:00 supply vddl not found, using dummy regulator
[ 3.017997] i2c_hid i2c-SYNA3602:00: unexpected HID descriptor bcdVersion (0x00ff)

Attached latest dmesg.

DIPIN P JOSEPH (dipinpjoseph) wrote :

Added psmouse.proto=bare to "/etc/default/grub" and rebooted.
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash psmouse.dyndbg=+p psmouse.proto=bare"

Still not working.

Hui Wang ( wrote :

Oh, your touchpad is i2c-hid, so it has nothing to do with psmouse.

Please add "i2c-hid.debug=1" and "hid.debug=1" to the bootargs, then upload the dmesg.


DIPIN P JOSEPH (dipinpjoseph) wrote :

Please check the latest dmesg.

Kai-Heng Feng (kaihengfeng) wrote :

Please test this kernel:

Use the descriptor in i2c-hid-dmi-quirks.c.

DIPIN P JOSEPH (dipinpjoseph) wrote :

Hi Kai-Heng Feng,

The patch is working fine. Thank you so much. The touchpad now lists in xinput,

⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SYNA3602:00 0911:5288 Touchpad id=13 [slave pointer (2)]
⎜ ↳ Goodix Capacitive TouchScreen id=14 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
    ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
    ↳ Video Bus id=6 [slave keyboard (3)]
    ↳ Power Button id=7 [slave keyboard (3)]
    ↳ USB 2.0 PC Camera: PC Camera id=12 [slave keyboard (3)]
    ↳ Intel HID events id=15 [slave keyboard (3)]
    ↳ Intel HID 5 button array id=16 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=17 [slave keyboard (3)]
    ↳ Goodix Capacitive TouchScreen id=19 [slave keyboard (3)]

When will this patch gets integrated to main stream kernel?

Thank you.

DIPIN P JOSEPH (dipinpjoseph) wrote :

Okay..thank you

Kai-Heng Feng (kaihengfeng) wrote :

Can you please test this kernel:

We may have found a real fix to the issue.

Andan Daran (andandaran) wrote :

Hi Kai-Heng Feng,

I have a laptop with the same problem. It's a SCHNEIDER SCL142ALM.

I have compiled the ubuntu kernel modifying the "i2c_hid_dmi_desc_override_table" to add:
  .ident = "SCHNEIDER SCL142ALM",
  .matches = {
  .driver_data = (void *)&sipodev_desc

And it's working fine.

Probably I could ask to include it in the next kernel version, but I think that it's not a good option to modify the kernel for every new vendor and model that decides to use this device.

It would be possible to add some parameter in the bootargs like for example psmouse.proto=sipodev and then use the i2c-hid-dmi-quirks?

In the meanwhile, please can you add the SCHNEIDER SCL142ALM to the override list?

Than you.

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-disco
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers