** Bug watch added: github.com/intel/thermal_daemon/issues #161
   https://github.com/intel/thermal_daemon/issues/161

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https://bugs.launchpad.net/bugs/1786575

Title:
  Dell XPS 15 9570 - Thermal Shutdown Event & Annoying Full-Speed Fan
  Spin Up

Status in thermald package in Ubuntu:
  Incomplete

Bug description:
  Main Problems:

  - Incorrect performance throttling results in Thermal Shutdown Event (~100C 
on CPU) as reported in BIOS log
  - System fan during system idle powers at full speed for 1 second every 
minute or so (could also be GPU fan)

  Environment:

  Dell BIOS: 1.3.0 (Also present in 1.2.0, 1.1.3)
  CPU: Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
  Operating Systems: Ubuntu 18.04.1 LTS
  Thermald Version: 1.7
  Ubuntu Thermald Package: 1.7.0-5ubuntu1
  Kernel: 4.17.14-041714-generic (Also present with 4.15.0-29, 4.15.0-30, 
4.17.11-041711)
  Intel Microcode: 3.20180425.1~ubuntu0.18.04.2
  Nvidia Driver: 396.51-0ubuntu0~gpu18.04.1
  TLP Package: 1.1-2ubuntu1

  I've documented this issue on the thermald Github page with thermald
  debug logs and configuration:
  https://github.com/intel/thermal_daemon/issues/161

  Basically, I've attempted to set the temperature for B0D4 to as low as
  85000 and while the debug log seems to indicate the trip has be made,
  the CPU scailing isn't working to keep the CPU from thermal shutdown.
  Disabling Turbo Boost prevents shutdown of the system.

  I'd expect thermald to performance throttle the CPU correctly to
  prevent it from a thermal overheat event.

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