Sounds like: > Xwayland does not provide a suitable mechanism for our driver to synchronize > application > rendering with presentation, which can cause visual corruption in some > circumstances.
from http://us.download.nvidia.com/XFree86/Linux-x86_64/535.54.03/README/wayland- issues.html ** Also affects: nvidia-graphics-drivers-535 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-535 (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xwayland in Ubuntu. https://bugs.launchpad.net/bugs/1970389 Title: [nvidia] Janky text entry and frames appear out of order in Xwayland apps Status in X.Org X server: New Status in nvidia-graphics-drivers-510 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-525 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-535 package in Ubuntu: New Status in xwayland package in Ubuntu: Confirmed Bug description: When writing into text fields in some applications (Firefox, VS Code) on Jammy in a GNOME / Wayland session, I can see an effect best described as the glyphs appearing / disappearing sometimes repeatedly. I have attached a recording from my phone (since attempting to record a screencast fails). This doesn't happen always, and it appear somehow sensitive to some environmental condition (load?) since for example when I'm on a video call, the effect seems to not be happening so often. I have also experienced a few instances of a currently not-focused window disappearing (seeing through to a window that is below that window), but cannot reproduce that reliably. I have the NVIDIA driver 510 in use, RTX3090-only 16-core Zen1 Threadripper system with no integrated GPU. No similar effects visible when in a GNOME / Xorg session. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gnome-shell 42.0-2ubuntu1 ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30 Uname: Linux 5.15.0-27-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Tue Apr 26 12:17:02 2022 DisplayManager: gdm3 InstallationDate: Installed on 2021-11-08 (168 days ago) InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012) RebootRequiredPkgs: Error: path contained symlinks. RelatedPackageVersions: mutter-common 42.0-3ubuntu2 SourcePackage: gnome-shell UpgradeStatus: Upgraded to jammy on 2022-04-22 (3 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1970389/+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
