re. qjackctl, qsynth, etc. from the ppa's... what errors exactly do you get while trying to update those? most specially qtractor and qpwgraph? could it be you already have it installed from .debs? try to to uninstall them, possibly using dpkg -P and retry with apt install ? seeya Reply
what errors exactly do you get while trying to update those? most specially qtractor and qpwgraph?
could it be you already have it installed from .debs? try to to uninstall them, possibly using
dpkg -Pand retry withapt install?seeya