Can you please run `watch -n0 cat /proc/interrupts` and check whether
"i2c_designware" or "SYNA8009:00" number is increasing without touching
the touchpad?

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1938096

Title:
  [Lenovo X1 Carbon 9th] [SYNA8009:00 06CB:CE57] touchpad lagging after
  resume from suspend

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