As a solution (until the binding of this device is fixed in the linux kernel), I blacklisted this driver in the kernel command line, as described in https://unix.stackexchange.com/a/474552/4319 :
First, find function names which look like initialization functions of this module: # fgrep elants /boot/System.map-5.8.0-23-generic | fgrep init ffffffff818f3430 t elants_i2c_initialize ffffffff818f40bf t elants_i2c_initialize.cold ffffffff829253f5 t elants_i2c_driver_init ffffffff82af7a30 t __initcall_elants_i2c_driver_init6 # The last one (__initcall*) doesn't look like the one we are looking for. Then add them to the kernel parameters in /etc/default/grub (on Ubuntu) GRUB_CMDLINE_LINUX_DEFAULT="... initcall_blacklist=elants_i2c_initialize initcall_blacklist=elants_i2c_initialize.cold initcall_blacklist=elants_i2c_driver_init" and run update-grub. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1900254 Title: fails to suspend unless I unbind a device from elants_i2c driver Status in linux-oem-5.6 package in Ubuntu: New Bug description: systemctl suspend stopped working successfully. The error message from journalctl -r is: Oct 17 17:26:27 jeanna-pc kernel: PM: Device i2c-ELAN0001:00 failed to suspend: error -16 Oct 17 17:26:27 jeanna-pc kernel: PM: dpm_run_callback(): acpi_subsys_suspend+0x0/0x60 returns -16 Oct 17 17:26:27 jeanna-pc kernel: printk: Suspending console(s) (use no_console_suspend to debug) Oct 17 17:26:27 jeanna-pc kernel: Freezing remaining freezable tasks ... (elapsed 0.300 seconds) done. This can be fixed with: echo i2c-ELAN0001:00 >/sys/bus/i2c/drivers/elants_i2c/unbind After this, systemctl suspend works again. After the next reboot, this situation repeats again. (Offtopic: As concerns the touchpad on this new Lenovo laptop, it never worked after Ubuntu installation -- with the default kernel or this one, no matter which one.) ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-unsigned-5.6.0-1021-oem 5.6.0-1021.21 ProcVersionSignature: Ubuntu 5.6.0-1021.21-oem 5.6.19 Uname: Linux 5.6.0-1021-oem x86_64 ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat Oct 17 17:53:01 2020 InstallationDate: Installed on 2020-08-03 (74 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: linux-oem-5.6 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.6/+bug/1900254/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
