[Bug 2112251] [NEW] Boot fails with Linux 6.14 on MacBook Pro

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I upgraded to Plucky today and was greeted by a black screen after
restarting. Since I can still get into GRUB, I tried booting with the
old kernel (6.11) and that works fine.

When selecting 6.14 the entire machine appears to lock up. I get no
output whatsoever, so the screen is either entirely black or has two
lines of text¹.

My machine is a MacBook Pro 2012. There should be more hardware details
attached.

¹) I fail to recall the exact content. I think "Loading image..." or
something like that.

ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: ubuntu-release-upgrader-core 1:25.04.16
ProcVersionSignature: Ubuntu 6.11.0-26.26-generic 6.11.11
Uname: Linux 6.11.0-26-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.32.0-0ubuntu5.1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports:
 644:0:109:293:2025-05-31 21:45:03.885052164 +0200:2025-01-05 10:55:30.846314919 +0100:/var/crash/kexec_cmd
 644:0:109:0:2025-05-31 21:45:01.653052129 +0200:2025-05-31 21:42:32.957862474 +0200:/var/crash/kdump_lock
CurrentDesktop: ubuntu:GNOME
Date: Sat May 31 21:57:50 2025
InstallationDate: Installed on 2024-10-13 (230 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/zsh
 TERM=xterm-ghostty
 XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to plucky on 2025-05-31 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade plucky wayland-session
-- 
Boot fails with Linux 6.14 on MacBook Pro
https://bugs.launchpad.net/bugs/2112251
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