#1 : The /etc/qt3 folder has very low permissions which refuses anyone else than root to access or list the files
In Gutsy : drwxr----- 2 root root
In Feisty : drwxr-xr-x 2 root root
#2 : The config file /etc/qt3/qtrc doesn't exist.
It isn't created during the installation process of the libqt3-mt package. for a unknown reason, the /etc entry has been removed from the debian/libqt3-mt.install file in the source package. Re-building the source package after adding /etc gives a binary .deb which fix the problem.
I found the problem!
There's two reasons why this problem happens :
#1 : The /etc/qt3 folder has very low permissions which refuses anyone else than root to access or list the files
In Gutsy : drwxr----- 2 root root
In Feisty : drwxr-xr-x 2 root root
#2 : The config file /etc/qt3/qtrc doesn't exist.
It isn't created during the installation process of the libqt3-mt package. for a unknown reason, the /etc entry has been removed from the debian/ libqt3- mt.install file in the source package. Re-building the source package after adding /etc gives a binary .deb which fix the problem.
I attached a Debdiff which fixes this problem.