Also a problem on my MSI GS43VR for 19.10
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Title:
Elantech - Touchpad not working after upgrading to 18.10 from 18.04
Status in
The touchpad of my Lenovo Thinkpad L480 does not work in both Ubuntu
Disco live and Eoan daily image. However, it works fine in Bionic
18.04.3 with the HWE kernel of Disco. So I guess there is a bug in a
different place beside the kernel.
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** Tags added: disco eoan
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Title:
Elantech - Touchpad not working after upgrading to 18.10 from 18.04
Status in linux package in
** Tags added: ubuntu-certified
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Title:
Elantech - Touchpad not working after upgrading to 18.10 from 18.04
Status in linux
Thinkpad L480, same problem, same solution, but encountered while
upgrading from 18.10 to 19.04. Machine was fresh installed with 18.10
and touchpad worked out of the box.
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I'm using a Thinkpad L480.
Gilbert Standen (gstanden) wrote on 2019-02-08: #19
#8 from Kai-Heng Feng (kaihengfeng) fixed the issue for me on Lenovo P72 Intel®
Core™ i7-8750H running Ubuntu 18.10 kernel 4.18.0-15-generic #16-Ubuntu SMP. I
added the following line to my /etc/default/grub
I'm using a Thinkpad T480s and while my Elantech touchpad was mostly
functional upon moving to 18.10 two-finger right-click and three-finger
middle-click stopped working. `libinput list-devices` showed 'none' for
a couple of features like 'Click methods.'
The same fixes above worked for me (both
#8 from Kai-Heng Feng (kaihengfeng) fixed the issue for me on Lenovo P72
Intel® Core™ i7-8750H running Ubuntu 18.10 kernel 4.18.0-15-generic
#16-Ubuntu SMP. I added the following line to my /etc/default/grub
GRUB_CMDLINE_LINUX="psmouse.elantech_smbus=0"
then ran "sudo update-grub" in the usual
Lenovo ThinkPad L580:
$ cat /sys/bus/serio/devices/serio1/firmware_id
PNP: LEN2037 PNP0f13
$ dmesg | fgrep -i elan
[0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.18.0-11-generic
root=UUID=8ee3c188-2063-45de-b270-2db3df928e18 ro psmouse.elantech_smbus=0
quiet splash vt.handoff=1
[
P52:
"cat /sys/bus/serio/devices/serio1/firmware_id":
PNP: LEN2132 PNP0f13
Confirming a fresh install of ubuntu 18.10 works yields a fully functional
touchpad but updating (tested with current kernel 4.18.0-12-generic) renders
the touchpad unusable.
Issuing "sudo sh -c 'echo -n "elantech">
L480:
cat /sys/bus/serio/devices/serio1/firmware_id
PNP: LEN2036 PNP0f13
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Title:
Elantech - Touchpad not working after upgrading to
Please test the kernel [1] with patch [2].
[1] https://people.canonical.com/~khfeng/lp1803600/
[2] https://patchwork.kernel.org/patch/10726585/
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Upstream maintainer wants to know the firmware information of your
touchpad, can you provide it?
https://lore.kernel.org/lkml/CAO-
hwj+fshpj7xbjobvk8ugrhfkcdfsmzicmmoymjs0cdza...@mail.gmail.com/
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** Summary changed:
- Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480|L580|P72)
+ Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480|L580|P72|P52)
** Summary changed:
- Elantech - Touchpad not working after upgrading to 18.10
Lenovo Thinkpad P52 is another laptop that uses this touchpad. Same
issues with the kernel detecting/configuring it.
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Title:
According to https://bugs.archlinux.org/task/59714, ThinkPad P72 is also
affected.
** Summary changed:
- Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480)
+ Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480/P72)
** Summary
Ok, I'll discuss with the patch author about how to solve the issue.
Seems to me DMI based quirk is required.
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Title:
Elantech -
@Kai-Heng Feng : Wow, it fixed the issue for me at least, on Lenovo
Thinkpad L580. :) :)
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Title:
Elantech - Touchpad not working
Yes, this seems to fix it with 4.20
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Title:
Elantech - Touchpad not working after upgrading to 18.10 from 18.04
(ThinkPad L480)
Boot with kernel parameter "psmouse.elantech_smbus=0" and see if this
helps.
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Title:
Elantech - Touchpad not working after
I have Lenovo L580. And a similar issue. The install image written to
the USB drive worked fine, but after installation touchpad simply did
not work. I've tried everything suggested (utilizing some google
searches ...), including kernel parameters, blacklisting various i2c hid
modules, and all the
Bug exists in upstream, 4.18.0-10 and 4.18.0-11 but not in 4.15.0-38
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Title:
Elantech - Touchpad not working after upgrading to
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Elantech -
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.20 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
Reassigned to the kernel.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
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Title:
Elantech - Touchpad not working after
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