Hello Mario, or anyone else affected,

Accepted linux-firmware into lunar-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/linux-
firmware/20230323.gitbcdcfbcf-0ubuntu1.4 in a few hours, and then in the
-proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
lunar to verification-done-lunar. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-lunar. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/2024774

Title:
  AMD Rembrandt / Phoenix PSR-SU related freezes

Status in Linux Firmware:
  Fix Released
Status in linux-firmware package in Ubuntu:
  Fix Released
Status in linux-firmware source package in Jammy:
  Fix Committed
Status in linux-firmware source package in Lunar:
  Fix Committed
Status in linux-firmware source package in Mantic:
  Fix Released

Bug description:
  [ Impact ]

   When using kernel 6.2 or later AMD has enabled PSR selective update (PSR-SU).
   After a non-deterministic amount of time the system may hang with a message 
like this in the logs:
   "[amdgpu 0000:67:00.0: [drm] *ERROR* [CONNECTOR:78:eDP-1] commit wait timed 
out]"

   Affects users of laptops that contain:
   * AMD Rembrandt (Yellow Carp) or AMD Phoenix (Pink Sardine) chips
   * eDP panels with Parade TCONs (8-03 and 8-01 both reported to fail)

  [ Test Plan ]

   * Test an affected laptop with the newer firmware and ensure that PSR-SU 
function can be enabled and system is stable.
   * Ensure other functions such as hotplugging monitors and suspending 
continue to work.

  [ Where problems could occur ]

   * Affected firmware only is loaded on Rembrandt and Phoenix laptops.
  Problems would be localized to these machines.

  [ Other Info ]
  The minimum firmware needed to help these hangs:
  * Rembrandt: 0x400003a or later
  * Phoenix: 0x8001000 or later

  The following commit upgrades the firmware for Rembrandt 
(amdgpu/yellow_carp_dmcub.bin) to 0x400003c:
  9dbd8ec2 ("amdgpu: DMCUB updates for various AMDGPU asics")

  The following commit upgrades the firmware for Phoenix 
(amdgpu/dcn_3_1_4_dmcub.bin) to 0x8001a00:
  045b2136 ("amdgpu: update DMCUB to v0.0.172.0 for various AMDGPU ASICs")

  The TCON in a given laptop can be identified from the DPCD with this script:
  https://gitlab.freedesktop.org/drm/amd/-/blob/master/scripts/psr.py

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux-firmware/+bug/2024774/+subscriptions


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