Hello En-Wei, or anyone else affected,

Accepted linux-firmware into plucky-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/linux-
firmware/20250317.git1d4c88ee-0ubuntu1.3 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-
plucky to verification-done-plucky. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-plucky. 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 in Ubuntu.
https://bugs.launchpad.net/bugs/2112518

Title:
  [AMDGPU] No display during boot on AMDGPU system with Thunderbolt-
  connected monitor

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Won't Fix
Status in linux-firmware package in Ubuntu:
  In Progress
Status in linux-oem-6.14 package in Ubuntu:
  Invalid
Status in linux source package in Noble:
  Won't Fix
Status in linux-firmware source package in Noble:
  Fix Committed
Status in linux-oem-6.14 source package in Noble:
  In Progress
Status in linux source package in Oracular:
  Won't Fix
Status in linux-firmware source package in Oracular:
  Won't Fix
Status in linux-oem-6.14 source package in Oracular:
  Invalid
Status in linux source package in Plucky:
  Won't Fix
Status in linux-firmware source package in Plucky:
  Fix Committed
Status in linux-oem-6.14 source package in Plucky:
  Invalid

Bug description:
  SRU Justification:

  [Impact]
  On HP AMDGPU platform running the 6.14.0-1005-oem kernel, the monitor screen 
never appeared when booting the system with a Thunderbolt cable connected. 
However, we were still able to SSH into the system, suggesting that it had 
booted successfully.

  [Fix]
  Updates are required for both the Linux AMDGPU driver and the linux-firmware 
package.

  - Linux AMDGPU driver: cherry-pick the following commit from the Linux
  mainline:

  59510792baa drm/amd/display: Assign preferred stream encoder instance
  to dpia

  - linux-firmware: backport the following commits from the upstream
  linux-firmware repository:

  1. b3049665a5d amdgpu: DMCUB updates for various AMDGPU ASICs
  2. 61d257d5a8b amdgpu: DMCUB updates for various ASICs
  3. 5602c7293e6 amdgpu: DMCUB updates for various ASICs
  4. b0e96674082 amdgpu: DMCUB updates for various ASICs
  5. a2aaefe5a59 amdgpu: update dcn 3.5 firmware to 0.1.0.0
  6. a80a8bd73e0 amdgpu: update dcn 3.5 and dcn 3.5.1 firmware to 9.0.27.0
  7. 25750add9b7 amdgpu: DMCUB updates for various ASICs
  8. 5ac6303062 amdgpu: DMCUB updates for various ASICs

  Be aware that only amdgpu/dcn_3_5_1_dmcub.bin and amdgpu/dcn_3_5_dmcub.bin 
are updated by the above commits.
  Updates to other files were intentionally omitted.

  [Test Plan]
  1. Connect the machine to an external monitor using a Thunderbolt cable 
before booting.
  2. Boot the system using the Noble OEM 6.14 kernel
  3. Verify that the display output appears on the monitor and the GNOME 
desktop environment is visible.

  [Where problems could occur]
  We updated the firmware to the latest version, while the Linux AMDGPU driver 
remains behind the mainline. As a consequence, a mismatch might occur between 
the Linux AMDGPU driver and the firmware.

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