Hi, now we found you do have I2C host device i2c_designware enabled, but somehow there doesn't seem to have any slave device probed. Please reboot with kernel parameter "dyndbg='file drivers/i2c/* +pt' log_buf_len=32M" and paste your dmesg output.
Please also attach acpi dumps: $ sudo apt install acpica-tools $ sudo acpidump -o acpi-dump.bin -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861610 Title: 'Elan touchpad' not detected in 'Ubuntu 19.04' on 'Lenovo ThinkBook 15 IIL' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs