qjackctl: error while loading shared libraries:
libQt6Widgets.so.6:
cannot open shared object file: No such file or directory
and yet:
$ locate libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6.2.2
[...]
All's well now. Made a file called my-qt-qjackctl.conf with contents:
# added Tue 25 Jan 2022 for qjackctl 0.9.6 on Qt 6.2.2
/home/john/Qt/6.2.2/gcc_64/lib/
Put it in /etc/ld.so.conf.d and ran sudo /sbin/ldconfig
It works! (And no problem with lines in the Connect frame.)
--
John.