[Bug 2084766] Re: Most Meteor Lake machines fail to boot into desktop after upgrading to the -48 kernel.

This bug was fixed in the package linux-firmware -
20220329.git681281e4-0ubuntu3.35

---------------
linux-firmware (20220329.git681281e4-0ubuntu3.35) jammy; urgency=medium

* Most Meteor Lake machines fail to boot into desktop after upgrading to the -48 kernel. (LP: #2084766)
- i915: update DG2 GuC to v70.8.0
- i915: Add GuC v70.13.1 for DG2, TGL, ADL-P and MTL
- i915: Add GuC v70.20.0 for ADL-P, DG1, DG2, MTL and TGL

-- Juerg Haefliger <juerg.haefliger@canonical.com> Fri, 18 Oct 2024
07:13:05 +0200

** Changed in: linux-firmware (Ubuntu Jammy)
Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2084766

Title:
Most Meteor Lake machines fail to boot into desktop after upgrading to
the -48 kernel.

Status in linux package in Ubuntu:
Invalid
Status in linux-firmware package in Ubuntu:
Invalid
Status in linux-hwe-6.8 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-firmware source package in Jammy:
Fix Released
Status in linux-hwe-6.8 source package in Jammy:
Invalid
Status in linux source package in Noble:
Invalid
Status in linux-firmware source package in Noble:
Invalid
Status in linux-hwe-6.8 source package in Noble:
Invalid

Bug description:
[Impact]
During the SRU testing, I found many laptops displayed a black screen after booting. Those machines are still alive and able to access via ssh, just nothing displayed on the screen.

After a brief check, those affected machines that I inspected are all
Meteor Lake machine.

I just attached the journal.log from one of the affected machines.

[Test Case]
1. restore the system the initial state.
2. run dist-upgrade
3. enable proposed pocket.
4. apt install linux-generic-hwe-22.04
5. reboot

[Fail rate]
5/5

[Expected result]

Machines can boot into desktop environment.

[Actual result]

Nothing display.

[Additional information]
Affected machines that I inspected are listed below
https://certification.canonical.com/hardware/202312-33277/
https://certification.canonical.com/hardware/202312-33278/
https://certification.canonical.com/hardware/202312-33279/
https://certification.canonical.com/hardware/202312-33291/
https://certification.canonical.com/hardware/202312-33251/
https://certification.canonical.com/hardware/202312-33252/
https://certification.canonical.com/hardware/202312-33253/
https://certification.canonical.com/hardware/202312-33254/
https://certification.canonical.com/hardware/202312-33255/
https://certification.canonical.com/hardware/202403-33527/
https://certification.canonical.com/hardware/202403-33526/
https://certification.canonical.com/hardware/202403-33525/
https://certification.canonical.com/hardware/202401-33397/
https://certification.canonical.com/hardware/202401-33398/
https://certification.canonical.com/hardware/202401-33401/
https://certification.canonical.com/hardware/202312-33275/
https://certification.canonical.com/hardware/202312-33273/
https://certification.canonical.com/hardware/202312-33274/
https://certification.canonical.com/hardware/202312-33270/
https://certification.canonical.com/hardware/202312-33271/
https://certification.canonical.com/hardware/202310-32270/
https://certification.canonical.com/hardware/202310-32272/

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.8.0-48-generic 6.8.0-48.48~22.04.1
ProcVersionSignature: Ubuntu 6.8.0-48.48~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5json:
 {
   "result": "skip"
 }
Date: Thu Oct 17 13:11:07 2024
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-jammy-amd64-20220504-33+jellyfish-oricorio+X125
InstallationDate: Installed on 2024-10-17 (0 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - somerville-jammy-amd64-20220504-33
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-signed-hwe-6.8
UpgradeStatus: No upgrade log present (probably fresh install)

[Where Problems Could Occur]

No or broken display output for HW with i915 GPUs that use the updated
firmware. Kernel crashes, stack traces, ... if incompatible.

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