Touchpad not detected

[Leifa]

The touchpad on my laptop is not working at all, i.e. moving the cursor, clicking, scrolling doesn't work. Using Windows, it works. An external mouse also works. I followed this description (https://wiki.ubuntu.com/DebuggingTouchpadDetection) which lead me to file this bug report here.

Laptop Model:

Lenovo V330-14IKB
Model Name: 81B0
S/N: MP1D0PVX
MTM: 81B0004RGE
MO: MPNXB811601Q

Ubuntu Version: 18.04 LTS
Ubuntu 4.15.0-23.25-generic 4.15.18

The touchpad has never worked from the beginning and seems to be not detected. I will attach the outputs of

- dmesg
- /proc/bus/input/devices
- cat /proc/version_signature > version.log
- sudo lspci -vnvn > lspci-vnvn.log

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

This change was made by a bot.

[Leifa (leif-s-o)]

Ok, I don't have much knowledge about what is going on, but after some research I found that the following line in the dmesg could be related to the issue:

[ 3.139131] i2c_hid i2c-ELAN0612:01: i2c-ELAN0612:01 supply vdd not found, using dummy regulator

Also, there was a commit in the linux code recently, for the kernel release 4.18:

https://github.com/torvalds/linux/commit/e6e7e9cd8eed0e18217c899843bffbe8c7dae564

Does this fix the bug?

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.17 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18-rc1

[Leifa (leif-s-o)]

I tried the new kernel as you said, the touchpad works perfectly there. Thank you!

[Dirk (dirk007)]

Hello,

i have the same problem with Lenovo Ideapad 330 15ARR

[ 2.772650] i2c_hid i2c-ELAN061E:00: i2c-ELAN061E:00 supply vdd not found, using dummy regulator
[ 2.774310] i2c_hid i2c-ELAN061E:00: Linked as a consumer to regulator.0
[ 2.776725] i2c_hid i2c-ELAN061E:00: i2c-ELAN061E:00 supply vddl not found, using dummy regulator

should i open e new bug report or can everyone add the device to?

Thanks in advance
Dirk