Black screen on boot after 20.04 upgraded to kernel 5.8
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
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-
Jan 12 19:09:55 BenXPS15 kernel: [14515.297170] audit: type=1400 audit(161043179
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_
* "sudo lspci -vnvn" output is included in the attached logs.zip
---
ProblemType: Bug
ApportVersion: 2.20.11-
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0p: ben 4518 F...m pulseaudio
CasperMD5CheckR
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
NonfreeKernelMo
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
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.
dmi.product.family: XPS
dmi.product.name: XPS 15 9550
dmi.product.sku: 06E4
dmi.sys.vendor: Dell Inc.
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1911352
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.