Public bug reported: When using Wayland (fractional scaling or not, I use 150% but tried with 100%), the external monitor is very slow / laggy.
In my setup, I only use the external monitor. Laptop has prime-select set to nvidia, and the Intel one is disabled in Bios. I found out that in X11 this issue with the external 4k monitor doesn't happen. This lag issue doesn't haven in the native laptop monitor also, in either Wayland or X11. In order to get to X11, I have to first Log In, then Log Out, then X11 is automatically selected (on first log in, Wayland is used, and you only have Gnome or Ubuntu options, after log out, you have more options). Please let me know what extra information you need. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: nvidia-driver-535 535.129.03-0ubuntu0.22.04.1 ProcVersionSignature: Ubuntu 6.2.0-36.37~22.04.1-generic 6.2.16 Uname: Linux 6.2.0-36-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82.5 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Nov 6 09:55:49 2023 InstallationDate: Installed on 2022-07-02 (492 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) SourcePackage: nvidia-graphics-drivers-535 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: nvidia-graphics-drivers-535 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-535 in Ubuntu. https://bugs.launchpad.net/bugs/2042840 Title: External monitor is very slow in 4k with Wayland + Nvidia Prime Status in nvidia-graphics-drivers-535 package in Ubuntu: New Bug description: When using Wayland (fractional scaling or not, I use 150% but tried with 100%), the external monitor is very slow / laggy. In my setup, I only use the external monitor. Laptop has prime-select set to nvidia, and the Intel one is disabled in Bios. I found out that in X11 this issue with the external 4k monitor doesn't happen. This lag issue doesn't haven in the native laptop monitor also, in either Wayland or X11. In order to get to X11, I have to first Log In, then Log Out, then X11 is automatically selected (on first log in, Wayland is used, and you only have Gnome or Ubuntu options, after log out, you have more options). Please let me know what extra information you need. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: nvidia-driver-535 535.129.03-0ubuntu0.22.04.1 ProcVersionSignature: Ubuntu 6.2.0-36.37~22.04.1-generic 6.2.16 Uname: Linux 6.2.0-36-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82.5 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Nov 6 09:55:49 2023 InstallationDate: Installed on 2022-07-02 (492 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) SourcePackage: nvidia-graphics-drivers-535 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-535/+bug/2042840/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp