Error: Failed to open display

[abergmeier]

When running flatpak run com.github.tchx84.Flatseal I only get:

(com.github.tchx84.Flatseal:2): Gtk-WARNING **: 17:32:50.648: Failed to open display

[rusty-snake]

Did you changed any permissions for Flatseal or global? Namely x11 and wayland or environment variables.

Which distro do you run? Do other flatpaks work?

[abergmeier]

Did you changed any permissions for Flatseal or global? Namely x11 and wayland or environment variables.

After it did not work I overwrote socket with both x11 and wayland - still no change in behavior

Which distro do you run?

Ubuntu 22.04

Do other flatpaks work?

Yep.

[JustAnEric]

@abergmeier Do echo $DISPLAY, it may be because the display variable isn't set correctly. I use export DISPLAY=:0 on my Raspberry Pi. It may be something the same on Ubuntu.

[tchx84]

@abergmeier when you say "other flatpaks", do you mean other GTK4 as well ? e.g. Decibels