gnome-shell hits 100% after running dGPU apps

Bug #2133521 reported by NightStrike
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gnome-shell (Ubuntu)
New
Undecided
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Bug Description

After running some games under Wine, such as Elder Scrolls Online, sometimes gnome-shell gets stuck in a state where it's spinning its main thread at 100% calling drmModeAtomicAddProperty() according to sysprof. The Settings > About page indicates that it's using the Intel integrated graphics instead of software rendering, and nvidia-smi shows gnome-shell sitting on the discrete card, but the excessive CPU implies to me that it's not using either (from my limited understanding of what drmModeAtomicAddProperty() is for).

Note that this is using Wayland, though I called ubuntu-bug on a session under Xorg to try to see if getting away from Wayland fixes the issue.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.9-0ubuntu2.3 [modified: usr/share/applications/org.gnome.Shell.desktop]
ProcVersionSignature: Ubuntu 6.8.0-87.88~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-87-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
CasperMD5CheckMismatches: ./boot/grub/efi.img ./casper/initrd ./casper/vmlinuz ./scripts/chroot-scripts/os-post/70_fix-apt-installed.sh
CasperMD5CheckResult: fail
CurrentDesktop: ubuntu:GNOME
Date: Mon Dec 1 12:17:03 2025
DisplayManager: gdm3
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-jammy-amd64-20220504-33
InstallationDate: Installed on 2023-11-11 (751 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - somerville-jammy-amd64-20220504-33
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: mutter-common 42.9-0ubuntu9
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
NightStrike (nightstrike) wrote :
tags: added: wayland-session
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