[Bug 2059847] [NEW] Input lag or freezes on Nvidia desktops with X11

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Daniel van Vugt (vanvugt):

[ Impact ]

Input or the entire screen may freeze at times on systems using the
Nvidia Xorg driver with GNOME.

[ Test Plan ]

0. Set up a desktop with Nvidia driver 545 or 550.
1. Log into Ubuntu, ensuring it's a Xorg session.
2. Open a Terminal, resize it vigorously, and type several lines of text.
3. Verify that input never froze for any perceptible period of time.
4. Run: journalctl -b0 | grep MetaSyncRing
5. Verify the above command does NOT show messages such as:

Window manager warning: MetaSyncRing: Sync object is not ready -- were events handled properly?
Window manager warning: MetaSyncRing: Sync object is not ready -- were events handled properly?
Window manager warning: MetaSyncRing: Sync object is not ready -- were events handled properly?
Window manager warning: MetaSyncRing: Too many reboots -- disabling

[ Where problems could occur ]

Anywhere in Nvidia (proprietary driver) Xorg sessions since that's the
code being modified.

[ Original Description ]

There is a noticeable delay in input while using the native terminal. I
belive it was caused by a recent software update, as this issue is
relatively new.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 6.5.0-26.26~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia wl
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Mar 30 19:57:13 2024
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2024-03-30 (0 days ago)
InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220)
SourcePackage: ubiquity
Symptom: installation
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: mutter
     Importance: Unknown
         Status: Fix Released

** Affects: mutter (Ubuntu)
     Importance: High
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Committed

** Affects: mutter (Ubuntu Jammy)
     Importance: High
     Assignee: Daniel van Vugt (vanvugt)
         Status: In Progress

** Affects: mutter (Ubuntu Mantic)
     Importance: High
     Assignee: Daniel van Vugt (vanvugt)
         Status: In Progress

** Affects: mutter (Ubuntu Noble)
     Importance: High
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Committed


** Tags: amd64 apport-bug fixed-in-mutter-46.1 fixed-upstream jammy noble nvidia regression-update ubiquity-22.04.20
-- 
Input lag or freezes on Nvidia desktops with X11
https://bugs.launchpad.net/bugs/2059847
You received this bug notification because you are a member of Ubuntu Sponsors, which is subscribed to the bug report.