@fvogt I've now added a logging category. Thanks for the suggestion.

As far as I understood, $WAYLAND_DISPLAY does not need to be set because there is a well-defined default, but I guess most of the time it's set anyway.

QGuiApplication checks $XDG_SESSION_TYPE maybe to find out whether to use X11 or Wayland if $DISPLAY and $WAYLAND_DISPLAY are both set.

I gave it a try and it works here now with $DISPLAY unset, thanks!

Should now work for pinentry-qt on Wayland even if DISPLAY is not set.

Huh, can't believe I somehow missed that this actually got a reply three years ago...

I am always glad to fix such bugs before a release (I am about to prepare 2.2.22).

I am always glad to fix such bugs before a release (I am about to prepare 2.2.22).

It worked! You were right!

Thank you for your prompt help. It's much appreciated.

rG4c8d5eb0bdd3: agent: Allow TERM="".

I see. Thank you @werner . For clarity could you please link the patch that was not backported to 2.2.?

Mails crossed ;-)

But @werner what's the value $TERM *supposed* to have? When gpg is invoked straight by Gnome? I can run the command sh -c 'env | grep TERM > ~/gnome-term.env' in Gnome's "Run Command: interface and then the file ~/gnome-term.env says TERM is set to nothing (It is set, but the contents is a "" string).

Ah wait. This has been fixed in master a year ago but was not backported to 2.2; see T4137. I'll add it to the forthcoming 2.2.22. Thanks for the report.

The warning above is harmless. Both strings are actually the same but stem from different versions of the autotools helper scripts

Unfortunately I've had some trouble compiling the latest git version of GnuPG for NixOS - I got this warning which turned out to be a blocker:

Without really looking at your report: May it be that this is because Pinentry does not get the WAYLAND_DISPLAY variable as reported in T5016? This will be fixed in 2.2.22 which I hope to release this week.

I take some of my words back - using or not using MOZ_ENABLE_WAYLAND=1 doesn't make a difference eventually - If Firefox is launched by Gnome and not gnome-terminal, pinentry fails to launch with and without MOZ_ENABLE_WAYLAND.

Then please set DISPLAY ;-)