What is the output of ls /sys/bus/acpi/devices/*PNP0CA0* on such a system?
Or grep -H . /sys/bus/acpi/devices/*PNP0CA0*/modalias?
And the output of cat /sys/bus/acpi/devices/*PNP0CA0*/uevent?

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https://bugs.launchpad.net/bugs/1758797

Title:
  [Ubuntu 18.04] USB Type-C test failed on GLK

Status in intel:
  New
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  [Impact]
  USB Type-C ports would not be seen at ls /sys/class/typec/ some times, ie, 
driver probe would fail. The fix just changes a timeout setting, allowing the 
probe to succeed in those cases there is load on the system.

  [Test Case]
  During boot, with the system at load, the probe would fail some times. With 
the increased timeout for firmware responses, that doesn't happen after many 
reboots.

  [Regression Potential]
  This would only impact systems that have this specific ACPI node. As the 
probe runs on a work queue, this should not impact boot time.

  Description:

  Platform information:
  Label: GLK02SDP
  Processor: Silver N5000
  Bios: GELKRVPA.X64.0083.B30.1801162142
  OS: Ubuntu 18.04
  Kernel: 4.15.0-10-generic

  Details:
  Bios: system setup -> system component -> USB Type-C <enabled>

  root@GLK02:~# cat /boot/config-4.15.0-10-generic | grep -i ucsi
  CONFIG_TYPEC_UCSI=m
  CONFIG_UCSI_ACPI=m

  root@GLK02:~# ls /sys/class/typec/
  root@GLK02:~#

  USB Type-C ports could not be seen.

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