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

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: systemd-hwe (Ubuntu Jammy)
       Status: New => Confirmed

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

Title:
  Improve power consumption on Framework systems

Status in OEM Priority Project:
  In Progress
Status in systemd package in Ubuntu:
  Fix Committed
Status in systemd-hwe package in Ubuntu:
  Invalid
Status in systemd source package in Jammy:
  Confirmed
Status in systemd-hwe source package in Jammy:
  Confirmed
Status in systemd source package in Lunar:
  Confirmed
Status in systemd-hwe source package in Lunar:
  Confirmed
Status in systemd source package in Mantic:
  Confirmed
Status in systemd-hwe source package in Mantic:
  Confirmed
Status in systemd source package in Noble:
  Fix Committed
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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