apport information ** Attachment added: "ProcCpuinfo.txt" https://bugs.launchpad.net/bugs/1780806/+attachment/5161433/+files/ProcCpuinfo.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/1780806 Title: Kernel 4.15.0 fails to boot with linux-modules-extra Status in linux package in Ubuntu: Confirmed Bug description: I upgraded my laptop (Sony VAIO SVS1511C5E, Intel Core i7-3612QM, NVIDIA GK107M / GeForce GT 640M LE, original hard disk changed to a Crucial SSD) yesterday from Ubuntu 17.10. to Ubuntu 18.04. The upgrade process went smoothly without issues. After upgrade, I cannot boot the new kernel version 4.15.0-23 in normal mode. The boot process hangs immediately after displaying "Loading initial ramdisk". In case I choose "Recovery mode", the system does boot successfully with the same kernel. I also tried installing kernels 4.15.0-22 and 4.15.0-24, which both behave identically. The problem seems to be related to the linux-modules-extra package. If the package is not installed, the system boots also in the normal mode. However, the display is not correctly recognized, it shows up as "Unknown display" with 1024x768 resolution. That also happens if I choose "Recovery mode" and "Resume boot". The previous kernel 4.13.0-46 (with linux-modules-extra installed) works without problems and the display is recognized correctly. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: arto 2916 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=2ef70a11-4a51-4152-a156-14c706505b71 InstallationDate: Installed on 2017-10-18 (263 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926) MachineType: Sony Corporation SVS1511C5E Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=791d0e17-7a4d-47c8-8f69-708bebb1e658 ro recovery nomodeset ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-23-generic N/A linux-backports-modules-4.15.0-23-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-23-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-07-08 (0 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare scanner sudo _MarkForUpload: True dmi.bios.date: 05/17/2012 dmi.bios.vendor: Insyde Corp. dmi.bios.version: R0142C5 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnInsydeCorp.:bvrR0142C5:bd05/17/2012:svnSonyCorporation:pnSVS1511C5E:pvrC60AVZAU:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.family: VAIO dmi.product.name: SVS1511C5E dmi.product.version: C60AVZAU dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1780806/+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
