The solution has been found and should have been rather obvious in the first place... Just try a different distribution.
I decided to try out Linux Mint 20.1 and have been testing it for the past ~6 hours, completely stock (except for all updates installed), no kernel modifications or GRUB options and it works every time on bootup with the touchpad. I am rather surprised that such a relatively old kernel (5.4) works with this new-ish laptop. Perhaps this was why I was so falsely focused on having newer kernels available in a distribution in the first place. I even tried 40 consecutive reboots whilst messing with the touchpad as the machine was booting and it still worked every time. Let it be known that the fix for the Lenovo IdeaPad 3 14ADA05 is to simply install Linux Mint. I have to imagine that other Ubuntu-based installs also work with this particular laptop, especially since it says "Fix Released" under Ubuntu and Ubuntu-related distributions. As far as Manjaro goes, also let it be known that something was introduced after Kernel 5.9.16-1 which breaks the ability for the touchpad to reliably work with this laptop. My best educated guess is that something is loaded too early or too late during bootup which gets jumbled up at random. No idea what that could possibly be, but I hope that Manjaro devs might take note. I know that at least @Helmut Stult might still be looking in this thread. I consider this fixed for my laptop :) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-libinput in Ubuntu. https://bugs.launchpad.net/bugs/1887190 Title: MSFT Touchpad not working on Lenovo Legion-5 15ARH05 Status in Pop!_OS: Fix Released Status in linux package in Ubuntu: Fix Released Status in xserver-xorg-input-libinput package in Ubuntu: Confirmed Status in linux package in Arch Linux: Fix Committed Status in linux package in Fedora: Confirmed Status in linux package in openSUSE: New Bug description: Update (based on #296) ============= The latest kernel tree (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git) has the complete solution to fix this bug. So we can expect kernel v5.11 to fix this issue without any additional work. Before the release of v5.11, you are suggested to use #189 to save your touchpad. Note that for distributions like Ubuntu and Fedora, the pinctrl-amd driver is built into the initramfs. So you have to rebuild the initramfs after replacing the old module with new one. On Fedora, run `sudo dracut --force`; On ubuntu, run `sudo update-initramfs -u`. The complete solution is three patches, - 47a0001436352c9853d72bf2071e85b316d688a2 ("pinctrl: amd: remove debounce filter setting in IRQ type setting") - 06abe8291bc31839950f7d0362d9979edc88a666 ("pinctrl: amd: fix incorrect way to disable debounce filter") - 8dcb7a15a585b6d0fee15751ce11d7a68cfedd56 ("gpiolib: acpi: Take into account debounce settings") The first two patches has reached the stable tree. If the last one is also backported to LTS kernel, you won't need to install kernel 5.11. But I don't know when this will happen. Original bug report =================== Hello The MSFT touchpad of this Lenovo Legion-5 15ARH05 laptop is not reacting at all (pointer and click never move when touchpad is touched). This has been reported by other users in various websites, with various linux systems including other Ubuntu systems, but I saw no launchpad bug so I post one. Example of websites covering the issue : - https://askubuntu.com/questions/1253830/lenovo-legion-5-touchpad (exactly the same laptop) - https://www.linux.org/threads/lenovo-legion-5-touchpad.29536/ (similar laptop) xinput indentifies it as MSFT0001:00 04F3:3140 Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ MSFT0001:00 04F3:3140 Touchpad id=17 [slave pointer (2)] ⎜ ↳ MSFT0001:00 04F3:3140 Mouse id=16 [slave pointer (2)] ⎜ ↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=12 [slave pointer (2)] ⎜ ↳ Logitech USB Optical Mouse id=11 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Ideapad extra buttons id=15 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Integrated Camera: Integrated C id=10 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=19 [slave keyboard (3)] ↳ Power Button id=9 [slave keyboard (3)] ↳ ITE Tech. Inc. ITE Device(8910) Wireless Radio Control id=13 [slave keyboard (3)] ↳ ITE Tech. Inc. ITE Device(8910) Keyboard id=14 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=18 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] Thanks a lot for your time. It does not help, but I can confirm what was reported on askubuntu by another user : the touchpad does work on Windows. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-40-generic 5.4.0-40.44 ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44 Uname: Linux 5.4.0-40-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nicolas 1567 F.... pulseaudio /dev/snd/controlC1: nicolas 1567 F.... pulseaudio /dev/snd/controlC2: nicolas 1567 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Jul 10 20:14:25 2020 InstallationDate: Installed on 2020-07-02 (8 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 82B5 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-40-generic root=UUID=d8898017-2821-434e-ab52-fec76ac93106 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-40-generic N/A linux-backports-modules-5.4.0-40-generic N/A linux-firmware 1.187.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/12/2020 dmi.bios.vendor: LENOVO dmi.bios.version: EUCN19WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Legion 5 15ARH05 dmi.modalias: dmi:bvnLENOVO:bvrEUCN19WW:bd05/12/2020:svnLENOVO:pn82B5:pvrLenovoLegion515ARH05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoLegion515ARH05: dmi.product.family: Legion 5 15ARH05 dmi.product.name: 82B5 dmi.product.sku: LENOVO_MT_82B5_BU_idea_FM_Legion 5 15ARH05 dmi.product.version: Lenovo Legion 5 15ARH05 dmi.sys.vendor: LENOVO --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-07-02 (12 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash Tags: focal Uname: Linux 5.8.0-050800rc5-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/pop-os/+bug/1887190/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
