*** This bug is a duplicate of bug 1878279 ***
https://bugs.launchpad.net/bugs/1878279
I had similar issue.
Lenovo Ideapad 5 14ARE05 dual boot Windows 10 and Ubuntu 20.04 (Kernel 5.11
after update)
Solution steps:
(1) Update your Ubuntu 20.04 installation with all the latest update.
This should update your Kernel too (mine updated to 5.11).
(2) Reboot
(3) Go to Windows 10 and Download and install Latest BIOS update and install
it. In my case BIOS updated from V1.09 to 1.10.
***Be careful and pay close attention to the instructions shown by the BIOS
update installer. Ideally you should fully charge your laptop before performing
BIOS update and keep your charger connected.***
Running BIOS update will reboot your system and change BIOS settings to
default. If you had disabled secure boot to install and dual boot Ubuntu
then this will enable secure boot option. You will need to disable it
again. Once BIOS update is completed reboot and go to BIOS (F2)
(4) Disable secure boot in BIOS again
(5) Boot to Ubuntu. (Tip: Use F12 key to boot to Ubuntu if you do not
get Ubuntu Grub Bootloader Menu. You can change the boot order from BIOS
settings (F2) permanently)
Your touchpad should start working.
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https://bugs.launchpad.net/bugs/1884981
Title:
Lenovo IdeaPad Flex 5 Ryzen (14ARE05): Touchpad/trackpad unpredictably
fails from any given boot
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Incomplete
Bug description:
I had Windows 10 on the device and the touch pad was working
perfectly, but when I set up Ubuntu 20.04 with Windows, in both OCs
the touch pad stopped working at all. It doesn't appear
/proc/bus/input/devices file.
$ lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-37-generic 5.4.0-37.41
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: danila 1249 F.... pulseaudio
/dev/snd/controlC0: danila 1249 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun 24 18:00:28 2020
InstallationDate: Installed on 2020-06-24 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 81YM
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic
root=UUID=c7036847-2fbc-429d-b113-30e6cc776647 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-37-generic N/A
linux-backports-modules-5.4.0-37-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/25/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: DTCN18WW(V1.04)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: No DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad 5 14ARE05
dmi.modalias:
dmi:bvnLENOVO:bvrDTCN18WW(V1.04):bd03/25/2020:svnLENOVO:pn81YM:pvrIdeaPad514ARE05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrIdeaPad514ARE05:
dmi.product.family: IdeaPad 5 14ARE05
dmi.product.name: 81YM
dmi.product.sku: LENOVO_MT_81YM_BU_idea_FM_IdeaPad 5 14ARE05
dmi.product.version: IdeaPad 5 14ARE05
dmi.sys.vendor: LENOVO
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