apport information ** Tags added: apport-collected cosmic
** Description changed: It's hard to report this bug on a laptop with this driver installed, so I'm reporting this with on my laptop with a much newer NVIDIA driver (but not recommended). My laptop, Lenovo Z40, has NVIDIA GeForce GT820M. With nvidia-340 driver installed it won't boot to SDDM (also tried with LightDM). Opening up another TTY is useless because the same message "PKCS#7 signature not signed with a trusted key" keeps getting spammed. I had to go to recovery to switch to Intel graphics. [CODE] $ lspci 03:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] (rev a1) [/CODE] + --- + ProblemType: Bug + ApportVersion: 2.20.10-0ubuntu13.1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: yamiyukisenpai 2601 F.... pulseaudio + /dev/snd/controlC1: yamiyukisenpai 2601 F.... pulseaudio + CurrentDesktop: KDE + Dependencies: + + DistroRelease: Ubuntu 18.10 + InstallationDate: Installed on 2018-08-05 (121 days ago) + InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) + MachineType: LENOVO 20366 + NonfreeKernelModules: wl + Package: nvidia-prime 0.8.10 + PackageArchitecture: all + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-12-generic root=UUID=3ac3d3b6-dc27-4365-a548-82d3be4e5ac9 ro quiet splash vt.handoff=1 + ProcVersionSignature: Ubuntu 4.18.0-12.13-generic 4.18.17 + RelatedPackageVersions: + linux-restricted-modules-4.18.0-12-generic N/A + linux-backports-modules-4.18.0-12-generic N/A + linux-firmware 1.175.1 + Tags: cosmic + Uname: Linux 4.18.0-12-generic x86_64 + UpgradeStatus: Upgraded to cosmic on 2018-10-10 (55 days ago) + UserGroups: adm cdrom dip kvm lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 07/21/2015 + dmi.bios.vendor: LENOVO + dmi.bios.version: 9BCN91WW + dmi.board.asset.tag: No Asset Tag + dmi.board.name: Lancer 4A5 + dmi.board.vendor: LENOVO + dmi.board.version: 31900058STD + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 10 + dmi.chassis.vendor: LENOVO + dmi.chassis.version: Lenovo Z40-70 + dmi.modalias: dmi:bvnLENOVO:bvr9BCN91WW:bd07/21/2015:svnLENOVO:pn20366:pvrLenovoZ40-70:rvnLENOVO:rnLancer4A5:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoZ40-70: + dmi.product.family: IDEAPAD + dmi.product.name: 20366 + dmi.product.sku: LENOVO_MT_20366_BU_idea_FM_Lenovo Z40-70 + dmi.product.version: Lenovo Z40-70 + dmi.sys.vendor: LENOVO ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1806817/+attachment/5219323/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806817 Title: PKCS#7 signature not signed with a trusted key To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1806817/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs