This bug is awaiting verification that the linux-oem-6.1/6.1.0-1016.16
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-jammy' to 'verification-done-jammy'. If the
problem still exists, change the tag 'verification-needed-jammy' to
'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-oem-6.1

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.1 in Ubuntu.
https://bugs.launchpad.net/bugs/2024449

Title:
  Fix audio white noise while play from HDMI/DP port on AMD W6300 gfx

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux-oem-6.1 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Invalid
Status in linux-oem-6.1 source package in Jammy:
  Fix Committed
Status in linux source package in Mantic:
  Incomplete
Status in linux-oem-6.1 source package in Mantic:
  Invalid

Bug description:
  [Impact]
  When playing audio from HDMI/DP port on AMD W6300 gfx, there's always white 
noise. It will disappear after suspend/resume. Disabling ASPM on W6300 also fix 
this.

  [Fix]
  Backport a fix from AMD on
  https://www.spinics.net/lists/amd-gfx/msg93796.html
  https://www.spinics.net/lists/amd-gfx/msg93797.html

  
  [Test]
  1. Power on the Desktop installed with AMD W6300 gfx
  2. Connect a monitor with either HDMI or DP cable.
  3. Change the audio output port to HDMI/DP and play audio.
  4. Verify if there's noise from the audio output

  [Where problems could occur]
  Only observed on AMD W6300. The fix revise the ASPM L1 inactivily time out on 
NAVI10 GPU series. The impact should be only for this particular GPU series.

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