[Bug 2045621] Re: Improve power consumption on Framework systems

[Nick Rosbrook]

** Changed in: systemd (Ubuntu Noble)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2045621

Title:
  Improve power consumption on Framework systems

Status in OEM Priority Project:
  Fix Released
Status in systemd package in Ubuntu:
  Fix Released
Status in systemd-hwe package in Ubuntu:
  Invalid
Status in systemd source package in Jammy:
  Won't Fix
Status in systemd-hwe source package in Jammy:
  Fix Released
Status in systemd source package in Lunar:
  Won't Fix
Status in systemd-hwe source package in Lunar:
  Won't Fix
Status in systemd source package in Mantic:
  Won't Fix
Status in systemd-hwe source package in Mantic:
  Fix Released
Status in systemd source package in Noble:
  Fix Released
Status in systemd-hwe source package in Noble:
  Invalid

Bug description:
  [ Impact ]

   * Framework systems that have DP or HDMI cards connected will have
  increased power consumption even when nothing is connected to DP or
  HDMI ports since the cards don't default to autosuspend.

   * Backporting upstream patch that adds rules in
  hwdb.d/60-autosuspend.hwdb for Framework's HDMI and DP extensions.

  [ Test Plan ]

   * DUT: Framework with DP and HDMI:

  $ lsusb | grep Framework
  Bus 007 Device 002: ID 32ac:0003 Framework DisplayPort Expansion Card
  Bus 001 Device 002: ID 32ac:0002 Framework HDMI Expansion Card

   1. Autosuspend is not enabled before patch. Set to "on" in
  power/control

  $ cat /sys/devices/pci0000:00/0000:00:08.1/0000:c1:00.3/usb1/1-1/manufacturer
  Framework
  $ cat /sys/devices/pci0000:00/0000:00:08.1/0000:c1:00.3/usb1/1-1/power/control
  on

  $ cat /sys/devices/pci0000:00/0000:00:08.1/0000:c1:00.3/usb1/1-2/manufacturer
  Framework
  $ cat /sys/devices/pci0000:00/0000:00:08.1/0000:c1:00.3/usb1/1-2/power/control
  on

   2. Install patch
   3. Autosuspend is enabled for both extensions. Set to "auto" in power/control

  $ cat power/control
  auto

  [ Where problems could occur ]

   * During testing verified that both DP+HDMI display show good output after hot-plug, system suspend, and reboot. There might be some differences when hibernate and hotplug.
   
  [ Other Info ]

   *
  https://github.com/systemd/systemd/commit/9023630cb7025650aa4d01ee794b0bb68bfdf2c1

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