Nouveau is very slow on RTX 3060 Ti

[Josué Casado Rabasco]

When I login with Ubuntu on Wayland, everything goes extremely slow. For example the mouse pointer.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.9-0ubuntu0.20.04.2
ProcVersionSignature: Ubuntu 5.13.0-37.42~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 28 09:16:30 2022
DisplayManager: gdm3
InstallationDate: Installed on 2022-02-11 (44 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: mutter-common 3.36.9-0ubuntu0.20.04.2
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Josué Casado Rabasco (geofisue)]

I run ubuntu-bug gnome-shell in a terminal but not in wayland, do I have to repeat it there?

[Daniel van Vugt (vanvugt)]

Thanks for the bug report. It looks like the system can't find a working graphics driver and so it's using slow software rendering.

Please run:

  lspci -k > lspci.txt
  journalctl -b0 > journal.txt
  dpkg -l > allpackages.txt

and attach the resulting text files here.

[Daniel van Vugt (vanvugt)]

Thanks for the quick reply.

The problem here is that kernel 5.13 and the free graphics driver it includes is too old to support your Nvidia RTX 3060 Ti chip.

Please use the 'Additional Drivers' app to install the official Nvidia driver.

[Josué Casado Rabasco (geofisue)]

Alright, now there is no option for login with Ubuntu on Wayland, but maybe this have solved my previous xorg problem.

[Daniel van Vugt (vanvugt)]

Wayland will be an option again in Ubuntu 22.04 but you can enable it manually by adding a kernel parameter: nvidia-drm.modeset=1