After updating my Ubuntu 20.04.1 to Ubuntu 20.10, Xorg applications won't launch.
I am using the vanilla gnome-session desktop on wayland.
It used to work well before the update, now applications like spotify, freeCAD and signal-desktop won't launch, failing with Aborted (Core dumped) (freeCAD) or cannot open display: :0 (spotify). It seems to me that these apps do not support wayland and should use the xwayland-server.
What I've tried so far:
- these applications have been installed via snap. When I install signal-desktop through apt it works flawlessly. I thus uninstalled all snaps and the entire snapd thing and removed all configuration files (both for snap and the apps) that I could find with
locate, then reinstalled them but the problem persists - Blender had the same problem at first, but it somehow works now after I deleted the
~/.config/blender/directory. I have however not found such directory for the aforementioned apps - I started an Xorg Session and tried to start the apps, they all worked.
So I guess the issue is somehow related to Wayland and / or snap, but any ideas for further debugging would be appreciated.
--> Do I have to tell the apps which display to use? If so, how?
--> Do I need to change the wayland /xwayland-server and / or snap configurations / permissions?