Appending "i8042.nopnp=1 pci=nocrs" to boot parameters worked for the
touchpad issue on the Lenovo V14-IIL.
Following are the steps I've followed:
1.) Open the file /etc/default/grub for editing, for example by running
sudoedit /etc/default/grub
2.) Add to the line beginning
Hi, it's me again try exactly what's mentionned in the Ticket #66 but when I
try to compil the DS.file I have an error :
Compile the dsl file:
# iasl -sa dsdt.dsl
dsdt.dsl PARSEOP_SCOPE on the line 38999 but never change something on
this line ..
Juste follow procedure .. Some help ?
Best
@Genstate Everything you need to know/do is to locate comment #66 follow those
steps and touchpad will work. If you have any other question just scroll down
and you will probably see an answer. I tested it in most popular distros and
it's working okay, you can find detailed description of
Hi, today we have just installed ubuntu 20.04 TLS on Lenovo Thinkpad T15
IIL. Everything's work fine except the touchpad. He's not respondig ..
so we have tried to search on google some fix or other but nothing
concrete. Any clue ? or any idea ? Thanks for your help. Please keep me
informed ASAP .
Hi Ismail,
I would suggest you to ask the original author of this kernel Kai-Heng
Feng (kaihengfeng) either in the bug report
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853277 or here.
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Hello nikita-tomilov... your solution worked and the trackpad is
working, but the issue i realised was that there was no kernel header
associated with the kernel and as as result VirtualBox cannot run VMs. I
was asking if anyone can help me with the guide to generate a kernel
header for the
Hello all,
Just wanted to let you know that the touchpad works on my 20SL0022 with
the kernel https://people.canonical.com/~khfeng/lp1853277-final/ and
unblacklisting i2c_hid (undoing changes made in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/comments/66).
My OS is Ubuntu
Hi Jakob, thanks for the response.
Tried it, got many error messages while trying to disassemble the
original acpi table.
Intel ACPI Component Architecture
ASL+ Optimizing Compiler/Disassembler version 20190509
Copyright (c) 2000 - 2019 Intel Corporation
File appears to be binary: found 82451
Hi,
I bought the Thinkbook 15IIL some days ago, although I read, that I would have
trouble with the touchpad.
I adapted Ferenc's post #66 for Manjaro (Arch) and it's working like a charm.
You don't need to change that much. Just install all packages with pacman -S
cpio iasl
And please use this
Hi! Thank you guys for the thread and hardwork.
I am using Ubuntu 20.04 on Lenovo Yoga Slim 7 (14IIL05). The touchpad
was not detected initially, so I installed Kai's kernel
https://people.canonical.com/~khfeng/lp1853277-final/ and now it worked,
but the downside is, my NVIDIA graphic card is not
The only tip I can give, is that I tried @ferenc's fix while I was running
5.8.0 kernel.
It was working as expected with the regular problems.
Then I've had some issues with Virtualbox-dkms and needed to go back to
5.4.0-47 kernel version.
Suddenly Ubuntu detects the trackpad flawlessly.
Good
5.4.0-47-generic
Lenovo ThinkBook 15 IIL
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
Status in
Hey Tzahi,
Can you please post your current kernel version and laptop model?
thanks!
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Title:
'Elan touchpad' not detected
Maybe some Kernel update for ubuntu during the last days?
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
I don't know what happened , but suddenly my computer detects it flawlessly.
I can control the driver from the settings section and disable the touchpad
from the Fn key
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Ah! I _thought_ _REG was ran but _STA still report wrong status.
Turns out _REG wasn't ran before _STA. Thanks for your patch.
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@ferenc-szabo, thank you for figuring out the issue with the _STA
method.
@kaihengfeng, it looks like we are both working on the same issue again
:)
I've written a simple, clean kernel patch fixing this, and I just got
confirmation from the reporter of:
Sorry to bother, but does "fix released" mean, after updating my ubuntu
20.04 the touchpad should work? Or do I still have to install a patched
Kernel?
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Please test this kernel without patched DSDT:
https://people.canonical.com/~khfeng/lp1853277-hack/
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Title:
'Elan touchpad'
Thanks @Ferenc~
Lenovo ThinkBook 14-IIL 20SL003SRU — touchpad flies.
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Title:
'Elan touchpad' not detected on 'Lenovo
Yep,
[mula@ArchMashina ~]$ xinput
⎡ Virtual core pointer id=2[master pointer (3)]
⎜ ↳ Virtual core XTEST pointerid=4[slave pointer (2)]
⎜ ↳ Elan Touchpad id=10 [slave pointer (2)]
⎣ Virtual core keyboard
Can you show me the output of the command "xinput" in your Arch distro?
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Title:
'Elan touchpad' not detected on 'Lenovo
You won't get any functionallity from ubuntu. Pointer events and 2
clicks that's it. Even though the touchpad get's recognized it get's
recognized as some hybrid ELAN device, which means no software can
detect it. I hope that there is something that you can do to "trick" the
kernel because the
About enabling and disabling , I've solved this by adding
/usr/local/bin
2 files:
disableMouse:
xinput --set-prop "ELAN0634:00 04F3:0400 Mouse" 180 0
enableMouse:
xinput --set-prop "ELAN0634:00 04F3:0400 Mouse" 180 1
Don't forget to make them executable...
# sudo chmod +x disableMouse
Thank you @Ferenc~!
Just a tiny question, what is the reason I cant disable the touchpad with the
Fn button that suppose to disable it?
What is the reason that all touchpad settings does not work in the settings
menu?
(Running Kubuntu 20.04)
Thanks a lot!
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I have to correct my message #106.
After going back to "normal2 kernel and reding all steps from #66 and #96, it
works fine.
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Hello everyone.
I'm trying to solve my thouchpad problem with solution from comment #66.
What should I do if after step
iasl -sa dsdt.dsl
if have output like this and don't have file dsdt.aml that mentioned in step
mv dsdt.aml kernel/firmware/acpi ?
Output:
"ASL Input: dsdt.dsl - 43833
I need help!
The solution from comment #66 and #96 doesn't work for me.
I see elan0634 in acpidump, but elan_i2c or i2c_hid don't show up in lsmod.
cat /sys/bus/acpi/devices has ELAN0634:00, but modalias is empty.
No reaction on the touchpad.
Ubuntu 20.04.1, latest BIOS update (DJCN18WW).
Any
Hello guys another update from me. I saw that tjis thread is shared
across multiple distro forums and because I tested 4 I would like to
post it here for feuture reference.
Ubuntu - working but with grub parametres from comment #96, sadly no
gestures are available (nor will be by libinput and
@Ferenc, thank you!!
Your comments #66 and #86 finally made the touchpad WORKING!
We have a Lenovo ThinkBook 15-IML with Linux Mint 20 MATE (based on
Ubuntu 20.04) and kernel 5.4.0-42.
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I have tested both a 14-IIL and a 15-ILL, it seems indeed that updating
the bios / AMT does not work, for now it does not seem any corrolation
to what touchpad is in what model, so i would just commend the STA bit
out for both the SYNA2B60, and the ELAN, check if hid_i2c works, if this
is broken
Also, please note that there is no acpidump in Arch. So these commands
should be used instead to decompile and recompile the acpi tables
-Extract the tables cat /sys/firmware/acpi/tables/DSDT > dsdt.dat`
-Decompile: `iasl -d dsdt.dat`
-Recompile: `iasl -tc dsdt.dsl`
Refer to
@Ferenc : You made my day. a true HERO !! It is now working on my Lenovo
Thinkbook 15 IIL with Kernel 5.7-14.1 with Manjaro. Thanks a lot I have
just applied a
$ modprobe elan_i2c
before rebooting which made the elan_i2c appear in my lsmod and my i2c drivers.
Thanks Again !
@Filip :
@Ferenc: even if it didn't work in my case, thank you for helping us
out. I have a Lebovo thinkbook 15 IIL. I can see ELAN0634 in
/sys/bus/acpi/devices but I have no /sys/bus/i2c/drivers/elan_i2c/
folder. The elan_i2c folder isn't there. also, like Filip I am getting
no elan_i2c in the output
@Ferenc: Thank you!
Looks like these notebooks can have different models of touchpads (Elan,
Synatics, Alps). I did the same for SYNA2B60 (ELAN0634 left as it was)
and got a perfectly working touchapd (it has double finger scrolling for
example). For ELAN0634 your approach didn't give any result.
Thank You, Ferenc, it is a great job. It works!
kernel: 5.7.10
bios: DJCN18WW
thinkbook 15-IIL
koszonom.
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Title:
'Elan
Yup, thats it you are a real MVP. I mean touch is quite bad and there
are no gestures but its W O R K I N G. Can confirm that it works both on
Ubuntu and Kali linux. If someone by chance find a good gesturea library
please keep us updated im trying to figure out will libinput dk the job.
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@Almir: Use this:
#!/bin/sh
sed -i -E 's/^(\s*initrd\s+)(\S*\/)(.*)$/\1\2acpi_fixed.cpio \2\3/g' \
/boot/grub/grub.cfg.new
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@Ferenc, thank you so much. It's working! Though without doubleclick but
it's not important.
Lenovo ThinkBook 15 IIL
Ubuntu 20.04
Kernel: 5.4.0-42-generic
BIOS: DJCN18WW
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@Almir
Watch this screenshot.
Only 2 lines
** Attachment added: "Снимок экрана от 2020-08-11 19-38-03.png"
EDIT
@Ferenc: Hello, im a bit new to linux, was using it mostly in collage so I know
that i'm doing something wrong, but have no idea what. Im getting a boot error
that acpi file cannot be found (cannot find /acpi_fixed.cpio) and then 'cannot
open root device' afterwards.I checked and the files
@Ferenc: Hello, can you please help me with this line:
#!/bin/sh
sed -i -E 's/^(\s+initrd\s+)(.*)$/\1\/acpi_fixed.cpio \2/g'
/boot/grub/grub.cfg.new
WHat do I need to copy here, because most of the time you use # as a
prefix for terminal, but here i don't know is it a comment or should I
@Tomaž: No idea. Sorry.
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
Status in linux package in
@Ferenc: I have similar results as Filip.
Followed the fix (#66), used the correct sed command (with backslash #86) and
updated grub... still no touchpad, even though output of 'lsmod | grep i2c' is:
i2c_algo_bit 16384 1 i915
elan_i2c 40960 0
i2c_i801 32768
@Aleksandar: I can't believe it: it works!! Thank you so much. Thank you
Ferenc!
Back in the game...
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Title:
'Elan
@Niko since you have an S145 you might want to try this:
https://www.reddit.com/r/linuxquestions/comments/f9h0q4/touchpad_issue_lenovo_s14515iil/
Just adding the "i8042.nopnp=1 pci=nocrs" kernel parameters to grub made
the touchpad work on a IdeaPad S145-15IIL 81W80025YA I had in my hands.
And don't forget 'sudo update-grub'...
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
Status in linux
@Filip: I don't know. The comment box wraps the lines to 75 character
length. Therefore the sed line has broken into two lines. If you copied
the raw text from the comment into the file it wont work.
Use this version instead: (note the backslash at the end of line)
#!/bin/sh
sed -i -E
Tried method in #66 with sed line from #67 but the problem persists. Notebook
is ThinkBook 15 IIL. Any suggestions? Maybe I am doing something wrong, I am
relatively beginner.
Output of 'lsmod | grep i2c':
i2c_algo_bit 16384 1 i915
i2c_i801 32768 0
Thanks
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This fix works for me on the Lenovo ThinkBook 14 IIL. Thanks Ferenc!
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Title:
'Elan touchpad' not detected on 'Lenovo
@Stephan: The i2c_hid could also be loaded by a dependency despite the
blacklist. The important question is which module has bound to the
device.
'ls /sys/bus/i2c/drivers/elan_i2c/' (should list the ELAN device)
'ls /sys/bus/i2c/drivers/i2c_hid/' (should not be found)
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@Niko: It looks like i2c_hid is being loaded. Make sure it is
blacklisted as per instructions.
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Title:
'Elan touchpad' not
@Niko: It looks ok. I have no idea what could be the problem. I'm sorry.
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Title:
'Elan touchpad' not detected on 'Lenovo
The output of 'lsmod | grep i2c' is
i2c_algo_bit 16384 1 i915
elan_i2c 40960 0
i2c_i801 32768 0
i2c_hid28672 0
hid 131072 3 i2c_hid,usbhid,hid_generic
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The solution of Ferenc worked for me, thank you a lot!
That's very sad that there is no any official fix for this problem,
although the bug is rather old.
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@Niko: The right modules should be loaded at boot time according to modalias.
What is the output of 'lsmod | grep i2c'?
The elan_i2c module should be in the list.
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The fix worked for me!!!
Although it does not have the full functionality (double finger etc..) it still
functions as a simple mouse which is enough for me at the moment!
Hoping there will be a full functionality fix soon!
Thank you so much for the help Ferenc, much appreciated.
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Hi Ferenc.
The device is listed exactly as you say: acpi:ELAN0633:PNP0C50:
How do I find the right module? Which modules are there? And how to load
it?
So gratefull you are helping!
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@niko:
Just a few tips:
- See the output of 'cat /sys/bus/acpi/devices' (with or without the acpi patch)
- If there is an item named like ELAN0633:00 then: 'cat
/sys/bus/acpi/devices/ELAN0633:00/modalias'
- If the output is not empty (contains text like acpi:ELAN0633:PNP0C50) then
you are on
No, that didn't work either. Sigh. And the device is still not listed in
/proc/bus/input/devices
Thanks anyway for your time.
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@Niko: You can try to commment out these lines too, but I doubt this fix
will work in your case:
//If ((TPTY == One))
//{
_HID = "ELAN0633"
BADR = 0x15
HID2 = One
Return (Zero)
//}
//
//If ((TPTY == 0x02))
//{
//_HID = "SYNA2B61"
//BADR = 0x2C
//HID2 = 0x20
//
And the dsl.
** Attachment added: "dsdt.dsl"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/+attachment/5400116/+files/dsdt.dsl
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Here it is (I have a Lenovo S145).
** Attachment added: "dsdt.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/+attachment/5400107/+files/dsdt.dat
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@Niko:
That looks a different hardware. Could you please upload the full dsdt.dat?
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Title:
'Elan touchpad' not detected on
@Frenec:
Ok, I simply commented out my lines:
Method (_STA, 0, NotSerialized) // _STA: Status
{
// If ((TPTY == Zero))
// {
// Return (Zero)
// }
// Else
// {
Return (0x0F)
// }
}
Then I follow your description with the new sed line. Instead of
<< find kernel | cpio -H
Hi Ferenc.
Tried your method. In /tmp/dsdt.dsl I found the HID of the touchpad: 0633 (!)
If ((TPTY == One))
{
_HID = "ELAN0633"
BADR = 0x15
HID2 = One
Return (Zero)
}
But then there is no "TPVD" to be found in the whole file. When
searching for "_STA" I find
Method (_STA, 0,
Use this sed line instead:
sed -i -E 's/^(\s*initrd\s+)(\S*\/)(.*)$/\1\2acpi_fixed.cpio \2\3/g'
/boot/grub/grub.cfg.new
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At last I have a working touchpad on my Lenovo ThinkBook 15 IIL!! :)
Ubuntu 20.04
Kernel: 5.4.0-42-generic
Steps to fix:
Do it as root:
$ sudo su
# apt update
# apt install acpidump iasl cpio
# cd /tmp
Get and disassemble the original acpi table:
# acpidump -b
# iasl -d dsdt.dat
Edit
Hello. Am I missing something here? It is still not working!! Can
someone please reply here! We are talking about a stupid touchpad and I
am getting really angry. Using Ubuntu since the very beginning but
something like this never happened so far!
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Still not working for me. @janitor can you please explain how to apply
the fix. In your text I dont see the bug number rnding in 610.
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Does not work on 5.4.0-42.46 focal (although I have ThinkBook 14-ILL).
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Title:
'Elan touchpad' not detected on 'Lenovo
I also face the same issue on Ubuntu 20.04. Will this fix available on
Ubuntu 20.04
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Title:
'Elan touchpad' not detected on
Was it? Well, doesn't work for my Ideapad S145 (see bug 1873677).
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook
This bug was fixed in the package linux - 5.4.0-42.46
---
linux (5.4.0-42.46) focal; urgency=medium
* focal/linux: 5.4.0-42.46 -proposed tracker (LP: #1887069)
* linux 4.15.0-109-generic network DoS regression vs -108 (LP: #1886668)
- SAUCE: Revert "netprio_cgroup: Fix
Tried it on my lenovo thinkbook 15 iil, sadly not working
bash: echo: write error: No such device
probably because the touchpad is literally invisible to kernel.
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Got this from a manjaro forum , wonder if it will work?
https://wiki.archlinux.org/index.php/Lenovo_IdeaPad_5_15are0#Touchpad
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There are allready a lot of duplicates to this buck, see bug 1885573, so
reposting is not necessary.
Still I am annoyed that the problem does not get fixed, because I would think
it is not a big think but it affects quite some people.
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Actually I posted this bug about 3 weeks ago when I purchassed my own laptop
and it got confirmed but nothing more. I don't want to be rude and spam it but
its kinda sad that lenovo advertises as ububtu certified but still let's this
things slip trough.
Anyways this thread is a nightmare
Fyi,it seems kmously and vicamo are not assigned on the bug anymore. Not
one is looking at it. What to do next ?
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Title:
This bug report got stuck with wrong "Fix Released"!
@kmously and @vicamo:
Please could you set the status back to "In Progress"?
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Hi, my pc has been on win10 for months. Was on VM a couple of month
until I got really tired of maintaining 2 setups so I deleted my VM and
now deperately waiting for a fix because I have projects that require
linux. Please help us. Windows is not better than linux but if in this
case, 8 months
Any luck with saving the world?
But more importantly is there any progress in finding a fix for this problem,
I feel that it's kind of ridiculous that the issue is not fixed for 8 months
now.
Would love to get and update
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No patch is working.
SHTF already, I need to save the world tomorrow and my touchpad isn't
working. If you aren't going to make it work just say it so I can do it
myself.
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Can you please explain how to apply the patch in #9.
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Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
Can we get an update on this issue, preferably from
https://launchpad.net/~vicamo to whom this issue is assigned? Is
anything being done to resolve it? It is marked as resolved for some
time now while actually it is not.
I'm asking this because I'll return this laptop if I cannot use Ubuntu
on it
I can confirm that the issue is still present with kernel
5.4.0-40-generic and BIOS version DJCN17WW
I bought this laptop to use it with ubuntu but it is unusable without
the touchpad. We've been waiting for the fix 5 months already. I am
ready to share any info that may help to resolve the
Touchpad is not working not working in xinput with BIOS version DJCN17WW
& kernel 5.4.0-40-generic
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Title:
'Elan touchpad'
Updated to the newer version, still can confirm the issue.Not only that
its not working but it's not detected. Can confirm also that fingerprint
sensor is missing.
Lenovo IML models got supported officialy by ubuntu, I hope that it
would be a small change for IIL models too.
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Hello,
I can confirm that I have the same problem with the touchpad on my lenovo
thinkbook 15 - IIL running ubuntu 20.04 kernel version 5.7.1-050701-generic
with bios version DJCN14WW and non of the fixes applied worked for me.
Will also provide any information needed in order to resolve the
Touchpad is still not working in latest kernels on Focal:
5.6.0-1017-oem
5.4.0-39-generic
Perhaps it should have it status changed from Fix released back to
Confirmed?
I'm willing to provide any information required to fix this issue in a
promptly manner.
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This bug was fixed in the package linux-oem-osp1 - 5.0.0-1059.64
---
linux-oem-osp1 (5.0.0-1059.64) bionic; urgency=medium
[ Ubuntu: 5.0.0-52.56 ]
* CVE-2020-0543
- SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
- SAUCE: x86/cpu: Add 'table' argument to
Greetings,
I recently bough lenovo thinkbook 15 - IIL and I can confirm that the newest
version of kernel nor boot parameter updates changed the state, touchpad is the
only driver that's not found. If there is anything that you need I will provide
it instalty because I bought this laptop for
Touchpad is not working nor is it listed in xinput with latest BIOS
(DJCN17WW) on following kernels with or without kernel parameters
suggested in comment #39:
5.6.0-1011-oem
5.4.0-37-generic
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Could you try a similar fix?
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881322/comments/3
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https://bugs.launchpad.net/bugs/1861610
Title:
'Elan touchpad' not
I just found that the kernels above do have an elan_i2c.ko with
"ELAN0634" by issuing:
for KO in $(locate elan_i2c) ; do strings -f $KO | grep ELAN0634 ; done
Nevertheless this touchpad still does not work with Ubuntu :-(
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I also tested kernel 5.4.0-38, 5.3.0-59 and 4.15.0-106 without success.
I confirm that the touchpad on our Lenovo ThinkBook 15 IIL does not work. And
it is not listed by "xinput" either. I tried many suggestions with BIOS
settings, kernel parameters and reloading modules.
Like Brian (comment
I've tested the fix on 5.4.0-38-generic and the bug persists.
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https://bugs.launchpad.net/bugs/1861610
Title:
'Elan touchpad' not detected on 'Lenovo ThinkBook 15 IIL'
** Changed in: linux-oem-osp1 (Ubuntu Eoan)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1861610
Title:
'Elan touchpad' not detected on 'Lenovo
This bug was fixed in the package linux - 4.15.0-106.107
---
linux (4.15.0-106.107) bionic; urgency=medium
* CVE-2020-0543
- SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
- SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
- SAUCE: x86/speculation: Add
This bug was fixed in the package linux - 5.3.0-59.53
---
linux (5.3.0-59.53) eoan; urgency=medium
* CVE-2020-0543
- SAUCE: x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2
- SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
- SAUCE: x86/cpu:
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