apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/2109397/+attachment/5874808/+files/UdevDb.txt
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2109397 Title: [Ubuntu 25.04] Kernel 6.14.0-15 causes Plymouth splash screen missing (text-only boot) on Intel iGPU Status in linux package in Ubuntu: Incomplete Bug description: After updating to Ubuntu 25.04 kernel 6.14.0-15, the boot splash screen (Plymouth) no longer appears. Instead, only verbose text boot messages are shown. Reverting to kernel 6.14.0-13 restores the normal behavior, with the Ubuntu logo and spinner during boot. This issue seems to affect systems with Intel Integrated Graphics, particularly Haswell generation (Xeon E3-1200 v3 / 4th Gen Core iGPU). Steps to Reproduce: --> Install Ubuntu 25.04 (Plucky) with kernel 6.14.0-13 (or earlier). --> Update to kernel 6.14.0-15 through normal system updates. --> Reboot. --> Observe missing Plymouth splash; system shows verbose text boot instead. Expected Result: --> Ubuntu logo splash with spinner should appear normally during boot. Actual Result: --> Only black screen with text messages during boot. --> No Plymouth logo or graphical splash. Hardware Information: --> CPU: Intel Xeon E3-1220 v3 (Haswell) --> GPU: Intel Integrated Graphics (i915 driver) --> Monitor resolution: 1600x900 (16:9) Workaround: --> Booting manually with previous kernel 6.14.0-13 restores the graphical splash screen. --> Setting GRUB to default to 6.14.0-13 avoids the problem temporarily. Additional Notes: --> Changing GRUB options (i915.modeset=1, GRUB_GFXPAYLOAD_LINUX=keep, quiet splash) did not fix the issue. --> Regenerating initramfs also did not fix the problem. --> Kernel changelog indicates changes to DRM/Xe/BMG drivers, which may have side effects on older Intel GPUs. uname -a lspci | grep VGA dmesg | grep -i drm Linux plack-puffin 6.14.0-13-generic #13-Ubuntu SMP PREEMPT_DYNAMIC Wed Mar 26 22:00:40 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) dmesg: read kernel buffer failed: Operation not permitted --- ProblemType: Bug ApportVersion: 2.32.0-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lionkr 2479 F.... wireplumber /dev/snd/controlC0: lionkr 2479 F.... wireplumber /dev/snd/seq: lionkr 2476 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 25.04 InstallationDate: Installed on 2025-03-29 (31 days ago) InstallationMedia: Lubuntu 25.04 "Plucky Puffin" - Beta amd64 (20250326) MachineType: LENOVO 10AAS0UJ00 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/plack/vmlinuz-6.14.0-15-generic root=UUID=5bcfe941-38ea-4732-b3e8-3014e3b46455 ro quiet splash resume=UUID=5bcfe941-38ea-4732-b3e8-3014e3b46455 ProcVersionSignature: Ubuntu 6.14.0-15.15-generic 6.14.0 RelatedPackageVersions: linux-restricted-modules-6.14.0-15-generic N/A linux-backports-modules-6.14.0-15-generic N/A linux-firmware 20250317.git1d4c88ee-0ubuntu1 RfKill: Tags: plucky wayland-session Uname: Linux 6.14.0-15-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/11/2014 dmi.bios.release: 1.96 dmi.bios.vendor: LENOVO dmi.bios.version: FBKT96AUS dmi.board.name: SHARKBAY dmi.board.vendor: LENOVO dmi.board.version: NOK dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.ec.firmware.release: 1.29 dmi.modalias: dmi:bvnLENOVO:bvrFBKT96AUS:bd08/11/2014:br1.96:efr1.29:svnLENOVO:pn10AAS0UJ00:pvrThinkCentreM93p:rvnLENOVO:rnSHARKBAY:rvrNOK:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuLENOVO_MT_10AA: dmi.product.family: To be filled by O.E.M. dmi.product.name: 10AAS0UJ00 dmi.product.sku: LENOVO_MT_10AA dmi.product.version: ThinkCentre M93p dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2109397/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
