Plymouth with Nvidia Drivers causes login loop at GDM

[Rajat Pandita]

Summary :-

Login loop on GDM after installing nvidia drivers using ubuntu-drivers autoinstall sript.

Hardware :- Nvidia GTX 1070 with a Intel Core i7 7700 HQ. HP OMEN 2017 Laptop.

Steps to reproduce :-

Simply install nvidia drivers using ubuntu-drivers autoinstall script.

Expected behaviour :- seamless autologin to desktop,

Observed behaviour:- GDM refuses to login automatically and then any attempts of logging in by entering password just simply fail. Hence login loop.

Only known mitigation is :- remove the splash from the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" in /etc/default grub and update-grub before installing nvidia drivers, Or chroot into the system after reproducing the error and remove "splash"

This bug has been in existence since Ubuntu 19.10, Wanted to ensure this was reported here for resolution.

Happy to provide further information if required.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: plymouth 0.9.4git20200323-0ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 30 16:24:42 2020
DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
InstallationDate: Installed on 2020-03-30 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200329)
MachineType: HP OMEN by HP Laptop
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic root=UUID=fed3e7a0-e171-4fe1-a43e-4c6e9292aacd ro quiet mitigations=off
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic root=UUID=fed3e7a0-e171-4fe1-a43e-4c6e9292aacd ro quiet mitigations=off
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/22/2018
dmi.bios.vendor: Insyde
dmi.bios.version: F.48
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8261
dmi.board.vendor: HP
dmi.board.version: 83.72
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.48:bd06/22/2018:svnHP:pnOMENbyHPLaptop:pvrType1ProductConfigId:rvnHP:rn8261:rvr83.72:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Omen
dmi.product.name: OMEN by HP Laptop
dmi.product.sku: 1HQ37PA#ACJ
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1845801, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.