You might want to try passing the various i8042 controller module linux
parameters (i8042.nomux=1, i8042.kbdreset=1, i8042.reset=1) and also
i8042.nopnp as told by your dmesg:
[ 0.602905] i8042: PNP: PS/2 appears to have AUX port disabled, if this
is incorrect please boot with i8042.nopnp
note
I may have found a somewhat acceptable workaround.
I have discovered that the above mentioned behaviour also occurs with a
successful suspend
So the workaround is:
Boot up -> suspend -> force shutdown(hold power button) while suspended
-> reboot
Then the touchpad should be working.
I am still
Some signs of life.
The laptop has a different bug where when you try to suspend it
immediately starts again and the core 0 is locked at 100%.
The touchpad works if you get the above mentioned bug and then force
shutdown via long pressing the power button and the boot again.
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This forum mentions a possible fix with kernel 5.14, however it is arch
and I could not reproduce the fix in Ubuntu with kernel 5.14.
https://forum.garudalinux.org/t/lenovo-flex-5-14-14are05-touchpad-not-
working-recognized/10993
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** Description changed:
The Laptop is an Ideapad Flex 5 14ARE05
Model 81X2
My touchpad is not recognized at all in xinput or libinput list-devices.
There are however some lines mentioned in dmesg about MSFT, Mouse and PS/2
which I think is the touchpad.
[0.004374] ACPI: SSDT
Still no fix under Ubuntu 21.04 with kernel 5.11
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https://bugs.launchpad.net/bugs/1912880
Title:
Touchpad (MSFT) not detected on Lenovo Ideapad Flex 5 AMD
To manage notifications
Just a quick update:
Somehow the note application xournalpp is able to detect the touchpad
and calls it "Touchpad", even though it is not visible in lshw, lsusb,
xinput or lspci.
Does this provide some clue?
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Bugs, which
I remember trying this but this is the wrong model.
The solution is for the 15ARE05 and this is about the 14ARE05.
The 14ARE05 does not have an elan touchpad but an MSFT one.
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I found the solution:
https://askubuntu.com/questions/1248176/ideapad-5-15are05-elan-touchpad-
not-working-on-20-04-nor-on-18-04/1257523#1257523
Edit /etc/default/grub and add
"initcall_blacklist=elants_i2c_driver_init" to GRUB_CMDLINE_LINUX, run
update-grub, power down the laptop and start it
I tried mainline kernel 5.12-rc5 and it didn't work. I can try with
newer kernel versions when they become available to see if it gets
fixed.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-signed-hwe-5.8 (Ubuntu)
Status: New => Confirmed
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Interesting to still get a response after two months. Thank you.
Anyway, a lot has changed since so the description is quite outdated.
The issue however still persists. I am currently hoping for the 21.04
kernel upgrade to maybe fix something.
It would be very helpful to have some more info on
I have the same issue. Let me know if you need any more info.
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https://bugs.launchpad.net/bugs/1912880
Title:
Touchpad (MSFT) not detected on Lenovo Ideapad Flex 5 AMD
To manage
** Description changed:
+ The Laptop is an Ideapad Flex 5 14ARE05
+
My touchpad is not recognized at all in xinput or libinput list-devices.
There are however some lines mentioned in dmesg about MSFT, Mouse and PS/2
which I think is the touchpad.
-
[0.004374] ACPI: SSDT
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