*** This bug is a duplicate of bug 1853277 ***
https://bugs.launchpad.net/bugs/1853277
This worked for me:
Kernel resolve problem:
https://people.canonical.com/~khfeng/lp1853277-hack-5/
Article: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610
Solved Model: Lenovo ThinkBook
*** This bug is a duplicate of bug 1853277 ***
https://bugs.launchpad.net/bugs/1853277
Just to follow up here... This bug is not a duplicate of #1853277. It
is a duplicate of #1861610, which recently had a resolution. See
comment 66 there, but be aware that the sed line had a bug that was
*** This bug is a duplicate of bug 1853277 ***
https://bugs.launchpad.net/bugs/1853277
** This bug has been marked a duplicate of bug 1853277
Lenovo ThinkBook 14-IML Touchpad not showing up in /proc/bus/input/devices
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I have built the kernel with the patches that are supposed to enable the
touchpad, but the problem persists:
https://lore.kernel.org/linux-
input/000201d5a8bd$9fead3f0$dfc07bd0$@emc.com.tw/
I have attached the disassembled dsdt.dsl from the system's acpi tables,
which has an entry for:
I have a similar issue with my Thinkbook 14 IIL.
There's no "_HIDELAN0634" record in the ACPI though, just "ELAN0634".
Applying the patch manually didn't help, but I probably did something
wrong in the process (downloaded kernel source, added the missing ID to
the driver file, compiled it,
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874374/+attachment/5363825/+files/dmesg.txt
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Please attach dmesg log since booted with that two applied.
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https://bugs.launchpad.net/bugs/1874374
Title:
thinkbook 14-iil elan touchpad does not work
Status in linux
Yup, that's been done too :/
Still doesn't work.
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https://bugs.launchpad.net/bugs/1874374
Title:
thinkbook 14-iil elan touchpad does not work
Status in linux package in
You need 1. patch ACPI to have a legal HID, and 2. a kernel that
recognizes this new ID. The second part is tracking at bug 1861610, and
you can find a test kernel in
https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1861610 .
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I have applied the patch as specified. Touchpad still does not work.
However, I now see ELAN0634 inside /sys/bus/acpi/devices.
/proc/bus/input/devices is still the same, and so is acpidump
** Attachment added: "lsofsys-bus-acpi-devices.txt"
Patch:
Name (_HID, "_HIDELAN0634")
as:
Name (_HID, "ELAN0634")
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https://bugs.launchpad.net/bugs/1874374
Title:
thinkbook 14-iil elan touchpad does not work
Status
@vimcamo there isn't a :Name (_HID, "")" inside of the ACPI
table for the thinkbook-14iil. Should I be adding an entry or editing
something else?
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@Brian, basically "_HIDELAN0634" is an illegal name according to ACPI
specification, so there won't be a overriding fix in kernel because
kernel would enforce the names to follow standard. It follows this
platform would have to be patch in the ACPI tables as detailed in
apport information
** Tags added: apport-collected focal
** Description changed:
Here is the output of
cat /proc/bus/input/devices
I: Bus=0019 Vendor= Product=0005 Version=
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S:
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: linux-signed-hwe (Ubuntu)
** Tags added: hwe-touchpad
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