This bug is awaiting verification that the linux-oem-5.13/5.13.0-1019.23
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-focal' to 'verification-done-focal'. If the
problem still exists, change the tag 'verification-needed-focal' to
'verification-failed-focal'.

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: verification-needed-focal

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.14 in Ubuntu.
https://bugs.launchpad.net/bugs/1949050

Title:
  Fix Screen freeze after resume from suspend with iGPU [1002:6987]

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux-oem-5.13 package in Ubuntu:
  New
Status in linux-oem-5.14 package in Ubuntu:
  New
Status in linux source package in Focal:
  Incomplete
Status in linux-oem-5.13 source package in Focal:
  Fix Committed
Status in linux-oem-5.14 source package in Focal:
  Fix Committed
Status in linux source package in Hirsute:
  In Progress
Status in linux-oem-5.13 source package in Hirsute:
  New
Status in linux-oem-5.14 source package in Hirsute:
  New
Status in linux source package in Impish:
  In Progress
Status in linux-oem-5.13 source package in Impish:
  New
Status in linux-oem-5.14 source package in Impish:
  New

Bug description:
  [Impact]
  Screen freeze after resume from suspend

  [Fix]
  Perform proper cleanups on UVD/VCE suspend: powergate enablement,
  clockgating enablement and dpm disablement. This can fix some hangs
  observed on suspending when UVD/VCE still using(e.g. issue
  "pm-suspend" when video is still playing).

  [Test]
  1. Plug AMD RX640/Radeon 540 into the system
  2. Connect with DP monitor to iGPU
  3. Power on
  4. Suspend the system
  5. Resume from suspend
  6. Do something for a while (terminal, nautilus, gnome-control-center, etc).
  7.  System could resume normally

  [Regression Potential]
  Low

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