Using GNU Radio 3.8.3.0 on Linux, I do not see anything about disconnected ports. But, there is a rather ugly error message that comes up about comparing NoneType vs int. No ideas at the moment.
You may also add an issue to https://github.com/gnuradio/gnuradio/issues, where it will be tracked. On Mon, May 3, 2021 at 3:10 PM Ralf Gorholt <ralf.gorh...@gmx.de> wrote: > Dear all, > > I have spent several hours before my PC trying to get my new OOT block > running, but in vain. Now I have got the impression that one of my > problems is due to a bug in GNU Radio (Companion). I have attached a > working graph (using Qt GUI) to this email. I am not used to report bugs > but in the wiki I have read that I should send an email to this list. > > The problem is, that in certain cases when I change the value of a > parameter in a combo box, GRC displays a message telling me that ports > are disconnected although they are not. > > This behaviour can easily reproduced. In GRC, load the attached flow > graph and open the properties window of a block that has a combo box. > Then, change a parameter and click the "Apply" button. The value in the > block changes. Then change the value back. As soon as you select the > item in the combo box, a message is displayed telling you that the ports > are not connected and no more changes are accepted, even when you click > on "Apply". > > I have verified this with GNU Radio version 3.8.2.0 on Linux (Python > 3.8.5) and 3.8.0.0 on Windows (Python 2.7.10). GNU Radio 3.9 (checked on > Windows) does not show this behaviour but if I remember correctly, not > everything has been ported to version 3.9 yet and for this reason I > would like to keep version 3.8. Would it be possible to fix this bug > also in version 3.8? > > Thank you very much for your help. > > Kind regards, > > Ralf >
