Touchpad not working after kernel upgrade

[Dmitry Ermichev]

My touchpad stopped to work unexpectedly. I don't understand, the cause of problem. Yesterday touchpad workes well, today I turned on my laptop, and touchpad not working. Maybe the problem did apperes after I upgrade to kernel 4.15.0-74-generic, but it was upgraded two days ago.
1. My laptop model: HP Probook 450 G3
2. Manufacturer of touchpad - Synaptic, I don't know exact model

Touchpad doesn't work in ubuntu live cd too. But it works in bios uefi and in windows installation cd.

xinput doesn't return information about touchpad

xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=9 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=15 [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)]
    ↳ Sleep Button id=8 [slave keyboard (3)]
    ↳ HP HD Camera: HP HD Camera id=11 [slave keyboard (3)]
    ↳ AT Raw Set 2 keyboard id=12 [slave keyboard (3)]
    ↳ HP WMI hotkeys id=13 [slave keyboard (3)]
    ↳ HP Wireless hotkeys id=14 [slave keyboard (3)]
    ↳ A4TECH USB Device id=10 [slave keyboard (3)]

I tried to set kernel options

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.nomux=1 i8042.reset"

it didn't helped to me

In attachments

cat /proc/bus/input/devices
dmesg

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1859028

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Dmitry Ermichev (dmitryermichev)]

I've run command
apport-collect 1859028, as supposed in email by bot
Don't know the result, because got error
dpkg-query: шаблону linux не соответствует ни один пакет
In english it means something like
dpkg-query: no packages match linux pattern

[Kai-Heng Feng (kaihengfeng)]

Can you please select previous kernel in GRUB menu and see if it works?

[Dmitry Ermichev (dmitryermichev)]

I tried with 2 kernel versions, that installed in /boot

 initrd.img-4.15.0-72-generic
 initrd.img-4.15.0-74-generic

Touchpad doesn't work on both

[Kai-Heng Feng (kaihengfeng)]

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc5

[Dmitry Ermichev (dmitryermichev)]

I tried with 2 new images

initrd.img-5.4.10-050410-generic
initrd.img-5.5.0-050500rc5-generic

Problem not solved for both. Touchpad is not working

[Dmitry Ermichev (dmitryermichev)]

The other not critical problem - keyboard not responding after laptop returns from sleep mode. May be these problem related and depends on power management?

[Kai-Heng Feng (kaihengfeng)]

Ok, so it's a regression not fixed in upstream kernel. What's the last working kernel?

[Dmitry Ermichev (dmitryermichev)]

I set kernel params
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash atkbd.reset"
My touchpad is recognizing now in xinput as PS/2 Generic Mouse.

xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=9 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=10 [slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse 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)]
    ↳ Sleep Button id=8 [slave keyboard (3)]
    ↳ HP HD Camera: HP HD Camera id=11 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
    ↳ HP WMI hotkeys id=14 [slave keyboard (3)]
    ↳ HP Wireless hotkeys id=15 [slave keyboard (3)]
    ↳ A4TECH USB Device id=16 [slave keyboard (3)]

But it doesn't work properly. Left/right button clicks recognized as cursor movement, cursor movement set wrong cursor position etc. The same situation on
4.15.0-72-generic
4.15.0-74-generic

[Dmitry Ermichev (dmitryermichev)]

> Ok, so it's a regression not fixed in upstream kernel. What's the last working kernel?

Working kernel was 4.15.0-72-generic, but now it doesn't work. Now i booted with 4.15.0-72-generic
 kernel and compare journalctl log with log of the same kernel, that was booted month ago.

Now:
янв 14 09:30:17 dmitry-HP-ProBook-450-G3 kernel: input: PS/2 Generic Mouse as /devices/platform/i8042/serio1/input/input7
янв 14 09:30:17 dmitry-HP-ProBook-450-G3 kernel: psmouse serio1: Failed to enable mouse on isa0060/serio1
янв 14 09:30:17 dmitry-HP-ProBook-450-G3 kernel: random: crng init done

Month ago:
дек 11 18:12:56 dmitry-HP-ProBook-450-G3 kernel: psmouse serio3: synaptics: queried max coordinates: x [..5716], y [..4886]
дек 11 18:12:56 dmitry-HP-ProBook-450-G3 kernel: psmouse serio3: synaptics: queried min coordinates: x [1220..], y [986..]
дек 11 18:12:56 dmitry-HP-ProBook-450-G3 kernel: psmouse serio3: synaptics: Touchpad model: 1, fw: 7.5, id: 0x1e0b1, caps: 0xf00173/0x640000/0xa2400/0x0, board id: 2654, fw id: 1323623
дек 11 18:12:56 dmitry-HP-ProBook-450-G3 kernel: input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio3/input/input10

Full journalctl logs in attachment

[Dmitry Ermichev (dmitryermichev)]

Month ago 4.15.0-72-generic boot log

[Dmitry Ermichev (dmitryermichev)]

Now 4.15.0-72-generic boot log

[Kai-Heng Feng (kaihengfeng)]

Can it be a hardware failure?

[Dmitry Ermichev (dmitryermichev)]

The problem is fixed by updating HP BIOS Firmware to latest version. Touchpad works again. Thanks for help!