kernel-packages team mailing list archive

[David Henningsson <1490895@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

This is a long-standing bug for some Haswell, Broadwell and most Skylake
machines.

When the HDA audio controller is in D3, a hotplug event (i e, HDMI or
DisplayPort being plugged in) fails to wake up the audio side so it
never registers that something has happened.

By having the i915 driver call directly into the hda driver, the HDA
driver is always notified that an HDMI hotplug event has happened.

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: David Henningsson (diwic)
         Status: In Progress

** Changed in: linux (Ubuntu)
       Status: New => In Progress

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => David Henningsson (diwic)

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https://bugs.launchpad.net/bugs/1490895

Title:
  Skylake/Broadwell/Haswell: No HDMI audio jack detection in D3

Status in linux package in Ubuntu:
  In Progress

Bug description:
  This is a long-standing bug for some Haswell, Broadwell and most
  Skylake machines.

  When the HDA audio controller is in D3, a hotplug event (i e, HDMI or
  DisplayPort being plugged in) fails to wake up the audio side so it
  never registers that something has happened.

  By having the i915 driver call directly into the hda driver, the HDA
  driver is always notified that an HDMI hotplug event has happened.

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