Telegram Desktop doesn't work if installed from user space

[bugworm]

Issue description

It gives me a strange error:

This application failed to start because it could not find or load the Qt platform plugin "xcb" in "".

Available platform plugins are: wayland-org.kde.kwin.qpa, minimal, offscreen, xcb, vnc.

Reinstalling the application may fix this problem.
[1]    1895 abort      telegram-desktop

Works fine if I add it to system config

Steps to reproduce

nix-env -iA nixos.tdesktop
telegram-desktop

Technical details

• System: NixOS: 17.03.1098.a162c6c828 (Gorilla)
• Nix version: nix-env (Nix) 1.11.8
• Nixpkgs version: "17.03.1098.a162c6c828"

[lheckemann]

#24256

[ttuegel]

This is fixed in master, but I will have to see if the patch is eligible to be backported.

[iblech]

Unfortunately, it seems that the bug resurfaced.

On a perhaps two weeks old nixos-unstable, nix-shell -p tdesktop does not result in a usable Telegram desktop client (SIGABRT immediately on startup), while installing it using /etc/nixos/configuration.nix works nicely.