The fix in the PPA is not working for me on Jammy: the lag may be gone, but some rendering is intermittently missed.
Some info: linux-image-6.5.0-27-generic 6.5.0-27.28~22.04.1 nvidia-driver-550 550.67-0ubuntu1.22.04.1 Maybe related in journalctl: Apr 06 09:47:33 alphasite gnome-shell[2505]: Can't update stage views actor <unnamed>[<MetaWindowGroup>:0x5b2bd9670320] is on because it needs an allocation. Apr 06 09:47:33 alphasite gnome-shell[2505]: Can't update stage views actor <unnamed>[<MetaWindowActorX11>:0x5b2bdb6eb320] is on because it needs an allocation. Apr 06 09:47:33 alphasite gnome-shell[2505]: Can't update stage views actor <unnamed>[<MetaSurfaceActorX11>:0x5b2bdb6eea60] is on because it needs an allocation. I think something similar was happening on nvidia-driver-535; I upgraded to 550 in an attempt to fix this. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2059847 Title: Input lag or freezes on Nvidia desktops with X11 Status in Mutter: Fix Released Status in mutter package in Ubuntu: In Progress Status in mutter source package in Jammy: Triaged Status in mutter source package in Mantic: Triaged Status in mutter source package in Noble: In Progress Bug description: [ 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) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2059847/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp