Comment 1 for bug 1772910

qbirthday maintainer here.

Indeed gbirthday is unmaintained (and is Python2/PyGTK).

When porting it to Qt I renamed it as qbirthday so that anyone willing a GTK version can pick gbirthday where we left it. I doubt anyone will, so switching to qbirthday sounds more reasonable on the long run. Besides, it should be easier to package. It has a setup.py and all. I contacted gbirthday's Debian packager but got no answer. Anyone willing to give it a go, please do so.

I have no idea what triggers this glib.GError and frankly, I won't take the time to investigate. Of course, if a patch is proposed, I can release a new version with the fix.

Meanwhile, @tellapu, you could try qbirthday (you're not the same person as Filbuntu, are you?) and see if you have that same display issue.