Public bug reported:

fter a recent automatic update, my system fails to boot to the graphical
login screen (GDM) and only shows a black screen.

Here are the key details of the issue:
* This failure happens on both kernel 5.15.0-160-generic and the new 
5.15.0-161-generic.
* The system boots and works **perfectly** if I manually select the older 
5.15.0-157-generic kernel from the GRUB menu.
* When I checked the logs from the failed boot (-b -1), I found that the 
graphics driver (amdgpu) loads, but the moment gnome-shell starts, the log is 
spammed with this repeating error:
    `Failed to post KMS update: drmModeAtomicCommit: Invalid argument`

This appears to be a kernel regression in the amdgpu driver that was
introduced after 5.15.0-157. The attached logs should contain all the
relevant hardware information.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-157-generic 5.15.0-157.167
ProcVersionSignature: Ubuntu 5.15.0-157.167-generic 5.15.189
Uname: Linux 5.15.0-157-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  herman_lab   2645 F.... pulseaudio
 /dev/snd/controlC1:  herman_lab   2645 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov  4 09:43:02 2025
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1+X00
InstallationDate: Installed on 2022-07-19 (1203 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 
20190418-12:10
MachineType: Dell Inc. Precision 3640 Tower
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-157-generic 
root=UUID=c58cc3e1-818f-4092-afa4-4470773137cd ro mem_sleep_default=deep quiet 
splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-5.15.0-157-generic N/A
 linux-backports-modules-5.15.0-157-generic  N/A
 linux-firmware                              20220329.git681281e4-0ubuntu3.40
RfKill:
 
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2022-07-19 (1203 days ago)
dmi.bios.date: 03/02/2025
dmi.bios.release: 1.38
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.38.0
dmi.board.name: 0D4MD1
dmi.board.vendor: Dell Inc.
dmi.board.version: A04
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvr1.38.0:bd03/02/2025:br1.38:svnDellInc.:pnPrecision3640Tower:pvr:rvnDellInc.:rn0D4MD1:rvrA04:cvnDellInc.:ct3:cvr:sku098D:
dmi.product.family: Precision
dmi.product.name: Precision 3640 Tower
dmi.product.sku: 098D
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy

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https://bugs.launchpad.net/bugs/2130648

Title:
  amdgpu driver fails with 'drmModeAtomicCommit: Invalid argument' on
  kernel 5.15.0-161

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