[Bug 1845801] Re: [nvidia] Automatic login fails and then all subsequent logins fail. Killing gnome-session-binary fixes it, or just not using automatic login.

Sat Jan 25 20:58:30 UTC 2020

@vanvugt: Actually, the only things necessary to trigger this bug (and
thus leave your computer useless) is to install Ubuntu, with auto-login
enabled, and an nvidia card in your computer. The proprietary drivers
aren't necessary.

Considering nvidia's market share (80% according to the steam hardware
survey, which will be skewed towards people with discrete GPUs, but
still), I think giving this issue a priority of low is wrong.

I think preventing people from bricking their systems should be given a
higher priority. Maybe add a feature in the installer to detect if
someone has an nvidia GPU, and prevent them to enable auto login if they
do. Or maybe remove "splash" from the kernel CLI args for people with an
nvidia GPU by default.

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Title:
  [nvidia] Automatic login fails and then all subsequent logins fail.
  Killing gnome-session-binary fixes it, or just not using automatic
  login.

Status in gdm3 package in Ubuntu:
  Confirmed
Status in gnome-session package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-390 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-430 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-435 package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed
Status in gdm3 source package in Eoan:
  Confirmed
Status in gnome-session source package in Eoan:
  Confirmed
Status in nvidia-graphics-drivers-435 source package in Eoan:
  Confirmed

Bug description:
  I just updated to the Ubuntu 19.10 beta. After boot, I'm shown the GDM
  login screen (which I shouldn't; I have auto login enabled), and
  logging in just takes me back to the same user selection screen even
  though the password is correct.

  If I switch to a TTY and run `sudo pkill gnome-session-binary`,
  logging in through GDM starts working again.

  I should add that the do-release-upgrade was rocky; I did it in a
  terminal from within gnome, went away for a while, and when I
  returned, I just saw an Ubuntu 19.10 in a TTY. I was able to do `sudo
  dpkg --configure -a` and complete the upgrade, but I don't know if
  something's still messed up due to that.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: xorg 1:7.7+19ubuntu12
  ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0
  Uname: Linux 5.3.0-13-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.suspend: suspend hibernate resume
  .proc.driver.nvidia.suspend_depth: default modeset uvm
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  435.21  Sun Aug 25 08:17:57 CDT 2019
   GCC version:  gcc version 9.2.1 20190909 (Ubuntu 9.2.1-8ubuntu1)
  ApportVersion: 2.20.11-0ubuntu7
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Sep 28 19:55:42 2019
  DistUpgraded: 2019-09-28 18:35:15,142 INFO cache.commit()
  DistroCodename: eoan
  DistroVariant: ubuntu
  DkmsStatus: nvidia, 435.21, 5.3.0-13-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. GP102 [GeForce GTX 1080 Ti] [1043:85e4]
  InstallationDate: Installed on 2019-09-14 (13 days ago)
  InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
  MachineType: MSI MS-7A67
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-13-generic root=UUID=04974c80-e732-49b6-8148-c3dce7c02a25 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg crash
  UpgradeStatus: Upgraded to eoan on 2019-09-28 (0 days ago)
  dmi.bios.date: 01/25/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2.60
  dmi.board.asset.tag: Default string
  dmi.board.name: H270I GAMING PRO AC (MS-7A67)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.60:bd01/25/2018:svnMSI:pnMS-7A67:pvr1.0:rvnMSI:rnH270IGAMINGPROAC(MS-7A67):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.family: Default string
  dmi.product.name: MS-7A67
  dmi.product.sku: Default string
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.99-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 19.1.6-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20190820-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

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