Comment 5 for bug 1878279

@AdrienM, so you can decompile your ACPI blob shipped by the device vendor:

  $ acpixtract acpi.dump
  $ iasl -d *.dat

And from the decompiled `dsdt.dsl` file, it has:

  Name (_HID, "XXXX0000") // _HID: Hardware ID
  Name (_CID, "PNP0C50" /* HID Protocol Device (I2C bus) */) // _CID: Compatible ID
  ...

I'm not sure what will it be like in the runtime, so we need your to run:

  $ cd /sys/bus/acpi/devices
  $ for d in $(ls -1 */hid); do d=${d%/*}; grep -q PNP0C50 $d/modalias && echo $d; done

And, please re-attach your dmesg log with following kernel boot parameters. For detailed steps, please see https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter:

  dyndbg="file drivers/hid/* +pt" i2c-hid.debug=1 log_buf_len=16M