Full Wine is installed, so VST should work. All VST plugins cause LMMS to hang. However, the dials and such on the plugins are responsive, so I think its a problem with LMMS. For that matter VST works perfectly under Reaper, which is a platinum rated Windows program running under Wine.
If you start LMMS from Konsole, do you get any error messages?
A few plugins will work. I do get errors when there is either a freeze or when a plugin seems to be unresponsive or rendered incorrectly.
This is the sort of error that is seen when the plugin does not work correctly, and when LMMS freezes.
fixme:gdiplus:GdipDrawLine graphics object has no HDC
This message is seen when it loads a plugin, but the plugin doesn’t work. LMMS isn’t frozen when this message is seen.
RemotePlugin::DebugMessage: editor successfully created
Considering the plugins work perfectly with the Windows program Reaper run under wine, I am inclined to think its a problem with LMMS or the Vestige thingy that loads the plugins.
Also just noticed some of the plugin processes persist after LMMS is shut off.
I have never used LMMS and Vestige(?), however, I do remember that both (if I remember correctly) fst and dssi-vst had problems with vst plug-ins created with SynthEdit. I am outdated topic-wise though, I quit using Windows/Wine vst a couple of years ago so things may have changed. But I remember Rosegarden (dssi-vst) crashed when I added those vst plug-ins to the vst directory, sometimes the whole system froze as well. Reaper is a native, Windows, vst host so it wouldn’t be affected as it doesn’t rely on any wrapper, e.g. dssi-vst or fst, to use (win) vst plug-ins.
vst_support_and_commercial_apps [LinuxMusicians Wiki]
Tested VSTs - LMMS-Wiki