apport information ** Tags added: apport-collected
** Description changed: Yesterday Ubuntu asked me to reboot after automatic updates, and when I rebooted it doesn't start up. Sometimes it stays on the Dell logo, sometimes it goes to a black screen and doesn't get past that (not sure what causes each variation -- perhaps for reboot it does the Dell logo, cold start up it does the black screen?). After the updates it's trying to boot the 5.8.0 kernel. In the boot menu, if I manually select the 5.4.0 kernel everything works fine. So presumably it's something about the 5.8 kernel on this hardware. When this occurred I was running the Nouveau open source graphics driver. I switched to the NVIDIA driver (460) to see if that would help, but it didn't change anything. So it may or may not be graphics related. I'm attaching my /var/log/kern.log and /var/log/syslog for yesterday -- Jan 12, I think it would be around 13:30 that I first rebooted after the upgrade (and a bunch of times after that). I ran the logs through grep -v 'var-snap-lxd-common-lxd' as a huge percentage of the lines were this (presumably irrelevant): Jan 12 19:09:55 BenXPS15 kernel: [14515.297170] audit: type=1400 audit(1610431795.003:29126): apparmor="DENIED" operation="open" namespace="root//lxd-juju-804318-0_<var-snap-lxd-common-lxd>" profile="snap.juju-db.daemon" name="/proc/631/net/netstat" pid=3906 comm="ftdc" requested_mask="r" denied_mask="r" fsuid=1000000 ouid=1000000 For reference: * This is a Dell XPS 15 (9550) laptop with an NVIDIA GeForce GTX 960M (I think it's hybrid graphics). i7-6700HQ 2.6GHz with 8 cores, 256 GB SSD, 16 MB RAM. * I installed Ubuntu 20.04 Focal in August 2020, and now it says it's on "Ubuntu 20.04.1 LTS". * /proc/version_signature: Ubuntu 5.4.0-59.65-generic 5.4.78 * "sudo lspci -vnvn" output is included in the attached logs.zip + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu27.14 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: ben 4518 F.... pulseaudio + /dev/snd/pcmC0D0p: ben 4518 F...m pulseaudio + CasperMD5CheckResult: skip + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 20.04 + InstallationDate: Installed on 2020-08-27 (138 days ago) + InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) + MachineType: Dell Inc. XPS 15 9550 + NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia + Package: linux (not installed) + ProcFB: 0 i915drmfb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-59-generic root=/dev/mapper/vgubuntu-root ro quiet splash + ProcVersionSignature: Ubuntu 5.4.0-59.65-generic 5.4.78 + RelatedPackageVersions: + linux-restricted-modules-5.4.0-59-generic N/A + linux-backports-modules-5.4.0-59-generic N/A + linux-firmware 1.187.7 + Tags: focal + Uname: Linux 5.4.0-59-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 12/12/2019 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: 1.13.1 + dmi.board.name: 0N7TVV + dmi.board.vendor: Dell Inc. + dmi.board.version: A00 + dmi.chassis.type: 9 + dmi.chassis.vendor: Dell Inc. + dmi.modalias: dmi:bvnDellInc.:bvr1.13.1:bd12/12/2019:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: + dmi.product.family: XPS + dmi.product.name: XPS 15 9550 + dmi.product.sku: 06E4 + dmi.sys.vendor: Dell Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1911352/+attachment/5452423/+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/1911352 Title: Black screen on boot after 20.04 upgraded to kernel 5.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911352/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
