Public bug reported:

It appears that occassionally my external GPU 'falls off' the bus, it's
listed as not primary, so should not be an issue.

However, a few minutes (usually) after this occurs, the Xorg server or
window manager completely locks up in strange ways.  For example - the
mouse can move across the multiple monitors, but no clicks are
registered.  similarly, no keyboard keypresses result in any change in
the UI.

However, applications happily run in the background - videoconference
meetings using the audio mic and speakers continue to operate , and the
machine stays online.  This leads me to believe there is some problem
with Xorg capturing the Human interface devices and passing these to the
correct applications, and then updating the displays.

I don't know how to trigger this behavior reliably, but I am getting
closer to tracking down how it occurs.  I hoped you might be able to
shed some light as to why this might be happening and how to resolve it.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-25.25-generic 6.2.13
Uname: Linux 6.2.0-25-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.52.00.0: Error: path was not a regular file.
.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  535.54.03  Tue Jun  6 22:20:39 
UTC 2023
 GCC version:  gcc version 12.2.0 (Ubuntu 12.2.0-17ubuntu1)
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 19 14:33:01 2023
DistUpgraded: 2023-04-26 15:38:23,675 DEBUG Running PostInstallScript: 
'/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: lunar
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] [8086:9a49] (rev 01) 
(prog-if 00 [VGA controller])
   Subsystem: Lenovo TigerLake-LP GT2 [Iris Xe Graphics] [17aa:22d4]
 NVIDIA Corporation TU117 [GeForce GTX 1650] [10de:1f82] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: eVga.com. Corp. TU117 [GeForce GTX 1650] [3842:1257]
InstallationDate: Installed on 2023-01-09 (191 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 
(20220809.1)
MachineType: LENOVO 20XY0027US
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-25-generic 
root=UUID=1cae8af8-977f-4853-9106-9169f34c4bc2 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to lunar on 2023-04-26 (84 days ago)
dmi.bios.date: 06/12/2023
dmi.bios.release: 1.61
dmi.bios.vendor: LENOVO
dmi.bios.version: N32ET85W (1.61 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20XY0027US
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.34
dmi.modalias: 
dmi:bvnLENOVO:bvrN32ET85W(1.61):bd06/12/2023:br1.61:efr1.34:svnLENOVO:pn20XY0027US:pvrThinkPadX1YogaGen6:rvnLENOVO:rn20XY0027US:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone:skuLENOVO_MT_20XY_BU_Think_FM_ThinkPadX1YogaGen6:
dmi.product.family: ThinkPad X1 Yoga Gen 6
dmi.product.name: 20XY0027US
dmi.product.sku: LENOVO_MT_20XY_BU_Think_FM_ThinkPad X1 Yoga Gen 6
dmi.product.version: ThinkPad X1 Yoga Gen 6
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.4-0ubuntu1~23.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.4-0ubuntu1~23.04.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lunar ubuntu

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/2028199

Title:
  GPU disconnect, then minutes later Xorg display lockup

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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2028199/+subscriptions


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