I can't reproduce this, and I can't explain it. A couple of things to try:
Try running pinentry-qt4 independently of gpg. Just start it and enter GETPIN at the prompt, and see if a window appears. Also check your login setup to make sure that the environment variables GPG_TTY and/or GPG_AGENT_INFO are set correctly. Although that wouldn't explain why pinentry-gtk-2 works. There could be other environment variables or settings that affect Qt but not Gtk. Testing the programs separately, as described above, might clarify that. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org