Bug#1126049: Wayland session crash with proprietary NVIDIA driver

[Jesse Rhodes]

Hi,






[1] https://wiki.debian.org/NvidiaGraphicsDrivers#wayland-modesetting

Did you enable the nvidia-drm.fbdev=1 and nvidia-drm.modeset=1 options specified in the Wayland Modesetting section of that wiki page [1]? You can verify with 'cat /proc/cmdline'. This should be all you need for the plasma wayland session to work with nvidia-driver and a supported[2] gpu. [2] https://us.download.nvidia.com/XFree86/Linux-x86_64/550.163.01/README/supportedchips.html

On 2026-01-20 17:50, pp...@riseup.net wrote:

Package: plasma-workspace
Version: 4:6.3.6-2
Severity: important

Setup

- Debian 13 (apt latest) 6.12.63+deb13-amd64
- KDE Plasma (from default apt)
- GPU: NVIDIA GeForce GTX

Details

When selecting the "Wayland" session in login screen's bottom-left and
logging in, the screen briefly flickers and then returns to the login
screen, resulting in a login loop.
Selecting "X11" allows me to login normally.
This issue is reproducible on every attempt to start new Wayland
session. There is no visible logs at all.

Steps to reproduce

1. Start Debian 13 with nvidia driver.
2. Choose Wayland
3. Input password and try to login.

Expected result

I can use Wayland. If some config is necessary, I expect clear
explanation in https://wiki.debian.org/NvidiaGraphicsDrivers

Actual result

I cannot login at all. Only X11 helps in this situation.

Related

-
https://old.reddit.com/r/debian/comments/1pi7qjy/debian_13_kde_login_loop_after_installing_nvidia/

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