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[Balazs Gibizer <1910341@xxxxxxxxxxxxxxxxxx>]

Sorry this bug is not about OpenStack Nova. Marking as Invalid.

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1910341

Title:
  BTP threshold didn't update

Status in OpenStack Compute (nova):
  Invalid

Bug description:
  sku: SP3-DVT2-C1,

  As AC is plugged, there are endless BAT0 udev event per check
  After check the finding is the BTP threshold didn't update.

  sudo udevadm monitor

  The output samples is like below:

  KERNEL[138.141119] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  UDEV [138.196176] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  KERNEL[139.620136] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  UDEV [139.677495] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  KERNEL[141.075309] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  UDEV [141.131830] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)
  KERNEL[142.541150] change /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0 (power_supply)

  ACPI SPEC

  10.2.2.8  _BTP (Battery Trip Point)
  This object is used to set a trip point to generate an SCI whenever the Battery Remaining Capacity 
  reaches or crosses the value specified in the _BTP object. Specifically, if Battery Remaining Capacity is 
  less than the last argument passed to _BTP, a notification must be issued when the value of Battery 
  Remaining Capacity rises to be greater than or equal to this trip-point value. Similarly, if Battery 
  Remaining Capacity is greater than the last argument passed to _BTP, a notification must be issued when 
  the value of Battery Remaining Capacity falls to be less than or equal to this trip-point value. The last 
  argument passed to _BTP will be kept by the system.
  If the battery does not support this function, the _BTP control method is not located in the namespace. In 
  this case, the OS must poll the Battery Remaining Capacity value.

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