"Is it perhaps an AppArmor issue? Looks like there is a dbus exception happening"
and
"Is it possible that in this new version Qt have removed the ability to load the testability driver? I know we had to patch something in at some stage, but I'm not sure of the specifics off the top of my head"
To the latter I'm able to answer that the load_testability_from_env_var.patch is still being applied (the support for QT_LOAD_TESTABILITY environment variable), but it's possible something has changed in the testability driver otherwise.
Chris Lee had two quick thoughts on IRC:
"Is it perhaps an AppArmor issue? Looks like there is a dbus exception happening"
and
"Is it possible that in this new version Qt have removed the ability to load the testability driver? I know we had to patch something in at some stage, but I'm not sure of the specifics off the top of my head"
To the latter I'm able to answer that the load_testabilit y_from_ env_var. patch is still being applied (the support for QT_LOAD_TESTABILITY environment variable), but it's possible something has changed in the testability driver otherwise.