@vicamo: Sorry for delay. I've tested / now running the kernel from the
PPA on my Acer Chromebook R11 and can confirm touch screen is still
working.
timo@timo-Cyan:~$ uname -a
Linux timo-Cyan 5.4.0-42-generic #46+lp1881319-Ubuntu SMP Tue Jul 14 06:40:05
UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
** Also affects: linux
Importance: Undecided
Status: New
** No longer affects: linux
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Title:
Touchpad not recognized
@tim-richardson and @olepet there is a 14ARE05 bug discussion at
#1884981
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05
Please try test kernel in
https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1881319, which marks
CONFIG_TOUCHSCREEN_ELAN as m only. We'll also need verification from
users of bug 1630238 before committing to ubuntu kernel to prevent
regression loop. This ppa is currently not yet available, but is
@olepet I have 14ARE05 too, same symptoms. It seems the hardware is different,
we need a new bug.
I see no elan modules loaded.
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Can anyone please attach `acpidump`?
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as
touch panel)
FWIW, only pinctrl needs to be builtin for #1630238, to make sure it's
working before touchpad/touchscreen gets probed.
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Title:
Another affected user of 15ARE05 with touchpad, fingerprint reader not
working and IOMMU read/write is impacted
>> pci :00:00.2: AMD-Vi: Unable to read/write to IOMMU perf counter.
>> Initramfs unpacking failed: Decoding failed
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@Simon, you should upgrade the ubuntu-mainline-kernel script, the
directory layout on kernel-ppa has changed, so the kernels are in a
different location.
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Adding "initcall_blacklist=elants_i2c_driver_init" to GRUB_CMDLINE_LINUX
in /etc/default/grub and run 'update-grub' works also fine for me!
Tested with mainline kernel 5.7.1 from
https://kernel.ubuntu.com/~kernel-ppa/mainline/
Newer mainline (5.7.1 to 5.7.4) faild to build properly for AMD
As a workaround you can add "initcall_blacklist=elants_i2c_driver_init"
to GRUB_CMDLINE_LINUX, run 'update-grub', power down the laptop and
start it again.
Works for me. (5.7.1 kernel-ppa mainline)
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Hi, I have got basically the same machine, but the 14 inch version. My touchpad
randomly works or not (about 50:50), but its behavior only changes after a
second boot. If it does not work, I do constantly get the following kernel
errors:
i2c_designware AMDI0010:00: controller timed out
Also,
No problem, I'm okay with the security side of things as I don't mind
re-building the kernel each time however the kernel built fine but
neither removing nor changing the "eKTH I2C touchscreen" to a module
made my touchpad work.
I wonder if this is because I have the touchscreen model as that
Sorry, I don't upload my stuff here. Using a self build kernel is at
your own risk especially there are no security-updates etc. You need to
take care yourself if you are willing to do so.
Unfortunately there are a lot of outdated instructions around how to build a
kernel.
I used this (in
Possibly upload his modified kernel*
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as
touch panel)
@sulliwane: What @Simon did was to change the "eKTH I2C touchscreen" to
be built as a module when compiling the kernel. I tried this and it
didn't seem to make a difference for me but I'm not as experienced with
Linux and may have done something wrong hence why I was asking if he
could possibly at
Thanks @Simon!
For information, I installed 5.7 from mainline
(https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7/) but Touchpad
still not working.
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@sulliwane:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881462
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05
Also, did anyone opened an issue related to the brightness controls?
Impossible to adjust the brightness
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Title:
Touchpad not
I also have a Lenovo IdeaPad 5 15ARE05 with Ubuntu 20.04 installed on
it. No touchpad working.
cat /proc/bus/input/devices
I: Bus=0019 Vendor= Product=0005 Version=
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
U:
Seems to be related: https://bbs.archlinux.org/viewtopic.php?id=256002
(Lenovo Ideapad 5 touchpad not working / untraceable)
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Title:
I also have a Lenovo IdeaPad 5 15ARE05 with no touchpad working, but
xinput list shows "GTCH7503:00 2A94:D64D" with no mention of Elan at
all. I installed Linux Mint. I tried 15 different solutions and none of
them worked. Please advised. Thank you.
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@Simon: And yes, I do get Elan errors in dmesg and also during boot.
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05
@Simon: That's very possible. Any chance you could post your modified
kernel for me to try.
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Title:
Touchpad not recognized Lenovo
@Steven Faust: Touchpad ELAN0001:00 04F3:3140 was visible in xinput with
my modified kernel only. With default kernel this is not visible.
Perform a click on the touchpad and look if there are errors in "dmesg"
command. Is is possible that GTCH7503:00 2A94:D64D is the optional
touchscreen?
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I also have a Lenovo IdeaPad 5 15ARE05 with no touchpad working, but
xinput list shows "GTCH7503:00 2A94:D64D" with no mention of Elan at
all.
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** Attachment added: "boot, use the touchpad, create log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881319/+attachment/5379965/+files/dmesg_log.txt
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I think module is better; then you can decide if you use it or not.
Buildin no chance.
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Title:
Touchpad not recognized Lenovo
correct: from m to y.
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as
touch panel)
Status in linux
Could you attach dmesg log booted from kernel with TOUCHSCREEN_ELAN
built as module?
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Title:
Touchpad not recognized Lenovo IdeaPad
The config was moved from y to m in bug 1630238 due to a regression also
in elan touchpad.
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Title:
Touchpad not recognized Lenovo
After removing "Elan eKTH I2C touchscreen" permanently build into the kernel,
it works.
>>xinput list
⎡ Virtual core pointer id=2[master pointer (3)]
⎜ ↳ Virtual core XTEST pointerid=4[slave pointer (2)]
⎜ ...
⎜ ↳ ELAN0001:00 04F3:3140
lsmod |grep elan
elants_i2c 24576 0
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as
https://bugzilla.kernel.org/show_bug.cgi?id=207759
** Bug watch added: Linux Kernel Bug Tracker #207759
https://bugzilla.kernel.org/show_bug.cgi?id=207759
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** Tags added: hwe-touchpad
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Title:
Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as
touch panel)
Status in
Which driver is used by the touchpad after TOUCHSCREEN_ELAN gets
compiled as module?
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Title:
Touchpad not recognized Lenovo IdeaPad
** Summary changed:
- Touchpad not recognized (probably falsely as touch panel)
+ Touchpad not recognized Lenovo IdeaPad 5 15ARE05 (probably falsely as touch
panel)
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