Public bug reported:
Upgraded from 24.04 to 26.04. The default Linux 7.0 kernel causes a
total black screen immediately following LUKS decryption on a Lenovo
V145-15ST (AMD Stoney Ridge APU, Radeon R3/R4/R5 graphics). Forcing a
fallback to the leftover 24.04 kernel (6.8.0-142) completely bypasses
the black screen and restores normal desktop acceleration.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: ubuntu-release-upgrader-core 1:26.04.25
ProcVersionSignature: Ubuntu 6.8.0-142.142-generic 6.8.12
Uname: Linux 6.8.0-142-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 9 20:04:59 2026
InstallationDate: Installed on 2020-08-12 (2249 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to resolute on 2026-10-07 (2 days ago)
VarLogDistupgradeTermlog:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade resolute wayland-session
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https://bugs.launchpad.net/bugs/2170402
Title:
Black screen on boot after upgrade from 24.04 to 26.04
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