Login freezes when using Nvidia drivers 435 and 440 (Ubuntu 18.04, Quadro T2000)

[Orestis Gorgas]

I have a Lenovo P53 which has hybrid graphics (Intel and Nvidia). I have chosen to use "discrete graphics" which means that I am using the Nvidia card.

Until a recent update everything was working fine. After the automatic update and the upgrade from kernel 5.3.0-28 to 5.3.0-40 (and possibly an upgrade of the Nvidia drivers) the opearing system hands after I enter the login credentials. I have tried to get some output from the startup screen by removing the "quite splash" from the grub file but it does not give any error information. It just hangs.

I am using Nouveau to login to the computer, but with Nouveau I the HDMI port is not working

I can try to add more debugging information if one helps me to collect it

I am using Ubuntu 18.04.4

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 5.3.0-40.32~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.11
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 6 11:39:29 2020
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GpuHangFrequency: Once a week
GpuHangReproducibility: I don't know
GpuHangStarted: I don't know
GraphicsCard:
 Intel Corporation Device [8086:3e9b] (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:2297]
 NVIDIA Corporation Device [10de:1fb8] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:2297]
InstallationDate: Installed on 2020-02-29 (5 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
MachineType: LENOVO 20QQS1JE00
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-40-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash nomodeset vt.handoff=1
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/28/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N2NET34W (1.19 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20QQS1JE00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN2NET34W(1.19):bd11/28/2019:svnLENOVO:pn20QQS1JE00:pvrThinkPadP53:rvnLENOVO:rn20QQS1JE00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad P53
dmi.product.name: 20QQS1JE00
dmi.product.sku: LENOVO_MT_20QQ_BU_Think_FM_ThinkPad P53
dmi.product.version: ThinkPad P53
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

[Orestis Gorgas (orestis-gorgas)]

Command line ttys work when using either driver. Wayland works with the Nvidia drivers but once I try to connect to another screen and change the setting from "Extend screen" to "Duplicate screen" the whole computer freezes

[Orestis Gorgas (orestis-gorgas)]

Nvidia bug-report

[Orestis Gorgas (orestis-gorgas)]

Problem seems to be resolved after I downloaded and installed manually the Nvidia 440.64 drivers for my card (Quadro T2000) from the official Nvidia website (https://www.nvidia.com/download/index.aspx).

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Orestis Gorgas (orestis-gorgas)]

Recent updates and installing the latest driver (440) from "Software and updates" seems to work fine when selecting "discrete graphics" mode from the BIOS .