dwl does not start when setting the DISPLAY variable

[TAforever]

Hello, thank you for the program, it works great, but could you please tell me how to set the DISPLAY environment variable to run X applications? Because if I write in the compositor launch script for dwl export DISPLAY=":0", the compositor does not start, and I get the following error: [backend/x11/backend.c:413] Failed to open xcb connection

[Supreeeme]

I'm not really familiar with dwl, but this error reads like dwl is trying to start in X. I think you want to configure it in a way that dwl doesn't try to launch in X. Maybe dwl has some sort of environment configuration?

(Also, purely out of curiosity, it doesn't really matter, but why are you using satellite? It looks like dwl has integrated Xwayland support.)

[TAforever]

This happens not only with dwl; I also tried river. I use satellite because it works better than the implementation in dwl

[TAforever]

I also just tested sway; it also does not start with the DISPLAY variable

[TAforever]

Here is the content of the .zprofile and dwl.sh files:

# environment variables
export PATH="${PATH}:$HOME/.local/bin"
export XDG_CONFIG_HOME="$HOME/.config"
export XDG_CACHE_HOME="$HOME/.cache"
export XDG_DATA_DIR="$HOME/.local/share"
export EDITOR=vim
export VISUAL=vim

# starting a compositor
if [ -z "$WAYLAND_DISPLAY" ] && [ "$XDG_VTNR" -eq 1 ] && [ ! -f /tmp/lock ]; then
  touch /tmp/lock
  exec dwl.sh
fi

#!/bin/bash

#export _JAVA_AWT_WM_NONREPARENTING=1
export SDL_VIDEODRIVER=wayland
export QT_QPA_PLATFORM=wayland
export QT_QPA_PLATFORMTHEME=qt6ct
export XDG_CURRENT_DESKTOP=dwl
export XDG_SESSION_TYPE=wayland
export MOZ_ENABLE_WAYLAND=1
export DISPLAY=":0"
exec dwl -s ~/.local/src/dwl/autostart.sh

[Supreeeme]

Ok, I am familiar with Sway 🙂
The issue is that sway/river/dwl support launching nested inside X11, and the presence of the DISPLAY variable will make the compositor try to launch as an X window, which is obviously not possible. You'll have to either find a way to force the compositor to start in tty mode or export DISPLAY after the compositor starts. I think you can do this from Sway's config file but I'm not sure. If you use systemd the service in the repo will make it easy.

[TAforever]

Okay, I understand, I will apparently have to either set the variable manually for each X application or apply the setupenv patch