No graphical boot with default Kubuntu 24.04

[Andreas Berger]

I upgraded from 23.10 to 24.04, and with it the new 6.8 kernel. I do not see the Kubuntu EFI logo, and the system never reaches the sddm login screen. I could not switch to a tty to login either. If I boot kernel 6.5 it works as expected.

If I remove "quiet splash" from the boot parameters, then kernel 6.8 also boots.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-22-generic 6.8.0-22.22
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Sun Apr 14 16:08:22 2024
InstallationDate: Installed on 2023-01-16 (454 days ago)
InstallationMedia: Kubuntu 23.04 "Lunar Lobster" - Alpha amd64 (20230115)
MachineType: ASRock B650E PG Riptide WiFi
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-22-generic root=UUID=5863f9c0-ef4f-497e-81f5-12268da1003b ro
RelatedPackageVersions:
 linux-restricted-modules-6.8.0-22-generic N/A
 linux-backports-modules-6.8.0-22-generic N/A
 linux-firmware 20240318.git3b128b60-0ubuntu2
SourcePackage: linux
UpgradeStatus: Upgraded to noble on 2024-04-13 (1 days ago)
dmi.bios.date: 03/01/2024
dmi.bios.release: 5.32
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 2.08
dmi.board.asset.tag: Default string
dmi.board.name: B650E PG Riptide WiFi
dmi.board.vendor: ASRock
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvr2.08:bd03/01/2024:br5.32:svnASRock:pnB650EPGRiptideWiFi:pvrDefaultstring:rvnASRock:rnB650EPGRiptideWiFi:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
dmi.product.family: Default string
dmi.product.name: B650E PG Riptide WiFi
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: ASRock

[Andreas Berger (hatbollen)]

Attaching a log file from a failed boot with kernel 6.8 with splash enabled

[Andreas Berger (hatbollen)]

Here's a log file when booting with kernel 6.5.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Flyte (o-launchpad-net)]

I also have an AMD CPU and I'm using the iGPU, in case that's related.

I'm able to boot with 'quiet splash' if I add 'nomodeset', but then have to use a single screen at low res.