Attached is a patch for bluepin which works with gtk2 on a recent installation. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 22334 [details, diff] bluepin.gtk2.xfree86-4.3.patch
the gtk2-patch is from the rh-package 2.3-14, I've commented out two additional lines (which are setting DISPLAY, XAUTHORITY and HOME) to get it work on my systems.
Please reenable those 2 lines I've commented out. They are needed because bluepin is started by root and I've tested it as the logged-in user. So the rh-patch from 2.3-14 is totally enough.
thanks for the patch. i've added it to bluez-utils with the set_display() function uncommented. it works well so i've made bluepin the default pin_helper and also a note in the ebuild about it.