system monitor fails with Nvideo multi-monitor

[Dominick Samperi]

I have four monitors attached to my Nvideo card, and when I try to run the system monitor it does not come up. The icon in the left panel shows that one instance is running, but there is no way to bring up the actual window (a picture of the activated window appears in the icon's "All Windows" section, but it is only a picture).

If I unplug all monitors except my main monitor, system monitor works without problems, showing that the problem is caused by some incompatibility between Nvideo multi-monitor support and Ubuntu desktop support.

I'm using Ubuntu 22.04.1 LTS, with whatever version of System Monitor and Xorg comes with this.
Video card is GeForce RTX 2080 SUPER, installed in Lenovo workstation running Windows 11.

What I expected to happen is the System Manager window is displayed.

What happened instead is only the icon is displayed.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53
Uname: Linux 5.15.0-48-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.0000.01.00.0: 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 470.141.03 Thu Jun 30 18:45:31 UTC 2022
 GCC version: gcc version 11.2.0 (Ubuntu 11.2.0-19ubuntu1)
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 4 22:36:49 2022
DistUpgraded: 2022-09-03 17:37:53,959 DEBUG icon theme changed, re-reading
DistroCodename: jammy
DistroVariant: ubuntu
DkmsStatus:
 nvidia/470.141.03, 5.15.0-47-generic, x86_64: installed
 nvidia/470.141.03, 5.15.0-48-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 NVIDIA Corporation TU104 [GeForce RTX 2080 SUPER] [10de:1e81] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] TU104 [GeForce RTX 2080 SUPER] [1462:c72c]
InstallationDate: Installed on 2021-02-27 (584 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
MachineType: LENOVO 90Q8000HUS
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-48-generic root=UUID=76867cf7-9235-4502-89e5-2731189d3e21 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to jammy on 2022-09-03 (31 days ago)
dmi.bios.date: 08/11/2021
dmi.bios.release: 1.28
dmi.bios.vendor: LENOVO
dmi.bios.version: O4LKT1CA
dmi.board.name: 3715
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T08861 WIN 3305329971172
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.13
dmi.modalias: dmi:bvnLENOVO:bvrO4LKT1CA:bd08/11/2021:br1.28:efr1.13:svnLENOVO:pn90Q8000HUS:pvrLegionT734IMZ5:rvnLENOVO:rn3715:rvrSDK0T08861WIN3305329971172:cvnLENOVO:ct3:cvrNone:skuLENOVO_MT_90Q8_BU_Lenovo_FM_LegionT734IMZ5:
dmi.product.family: Legion T7 34IMZ5
dmi.product.name: 90Q8000HUS
dmi.product.sku: LENOVO_MT_90Q8_BU_Lenovo_FM_Legion T7 34IMZ5
dmi.product.version: Legion T7 34IMZ5
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.5-0ubuntu0.1
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 2:21.1.3-2ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
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

[Dominick Samperi (djsamperi)]

Forgot to mention, this is not specific to System Monitor. I observed the same problem (windows not displayed) when running another application. But most applications work without this glitch.