abGate's GUI is infamously ill-behaved under Qt hosts, namely qtractor. that and most Gtkmm based LV2 UIs.
general problem is often due to Gtkmm not being nice or compatible with Qt GUI C++ stacks, where as pure Gtk+ would do nicely.
i'd advise for you to avoid abGate on qtractor, at least don't use its own native GUI for that matter--you can use the generic plugin properties dialog without problems though.
otoh. it's ok on Ardour just because it's a Gtk host obviously, so that no one complains about GUI toolkit incompatibilities there; and it works on Carla most probably because it's run in a separate process, whatever :)
all that to say that's not a qtractor bug, in fact is a very old and known problem issue and lurks in there since ever.
but yeah. let me tell ya that the abGate GUI doesn't crash on me, i say on my current environment that is (openSUSE 13.2, Qt4 4.8.6, Qt5 5.4.2, Gtk2(mm) 2.24, gcc4 4.8.3)..., but it used to (crash) before. fingers crossed? nope
i'm just ranting about some old ago stories i've been told and heard around ;)
abGate's GUI is infamously ill-behaved under Qt hosts, namely qtractor. that and most Gtkmm based LV2 UIs.
general problem is often due to Gtkmm not being nice or compatible with Qt GUI C++ stacks, where as pure Gtk+ would do nicely.
i'd advise for you to avoid abGate on qtractor, at least don't use its own native GUI for that matter--you can use the generic plugin properties dialog without problems though.
otoh. it's ok on Ardour just because it's a Gtk host obviously, so that no one complains about GUI toolkit incompatibilities there; and it works on Carla most probably because it's run in a separate process, whatever :)
all that to say that's not a qtractor bug, in fact is a very old and known problem issue and lurks in there since ever.
but yeah. let me tell ya that the abGate GUI doesn't crash on me, i say on my current environment that is (openSUSE 13.2, Qt4 4.8.6, Qt5 5.4.2, Gtk2(mm) 2.24, gcc4 4.8.3)..., but it used to (crash) before. fingers crossed? nope
i'm just ranting about some old ago stories i've been told and heard around ;)
sorry.
cheers