Public bug reported:
Ran apt update as usual.
Package linux-firmware-amd-graphics:amd64 (20240318.git3b128b60-0ubuntu3.3,
20240318.git3b128b60-0ubuntu3.4) was updated.
Rebooted, screens went black.
journal control showed:
kernel: amdgpu 0000:03:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data:
DMCUB error - collecting diagnostic data
repeated many times.
Panicced, and got some help from claude to replace the firmware with
upstream (kernel.org git)
My gpu is an RX9070XT.
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Device 7550 (rev c0)
Subsystem: Sapphire Technology Limited Device e490
Kernel driver in use: amdgpu
Kernel modules: amdgpu
let me know if i can help more
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-firmware-amd-graphics 20240318.git3b128b60-0ubuntu3.4
ProcVersionSignature: Ubuntu 7.0.0-42.42~24.04.1-generic 7.0.14
Uname: Linux 7.0.0-42-generic x86_64
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Thu Nov 5 00:50:06 2026
Dependencies:
InstallationDate: Installed on 2023-09-06 (1155 days ago)
InstallationMedia: Kubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64
(20230807.1)
PackageArchitecture: all
SourcePackage: linux-firmware-amd-graphics
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-firmware-amd-graphics (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2173043
Title:
Latest update to linux-firmware-amd-graphics is incompatible with
rx9070xt. Caused black screens and DMCUB errors. Temp resolved by
grabbing upstream firmware
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