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mrzapp

Member

Registered: 2016-06-25

Posts: 4

[SOLVED] No GUI in LV2 plugins in Ardour

This is for version 5.12.0 of Ardour. The plugins I am trying are zynaddsubfx, drumkv1 and synthv1.

When installed from the official repos, these LV2 plugins have no GUIs. Running from the commandline shows no errors, there are no errors in the Ardour log and the config has LV2 GUI embedding set to true.

When using the official Ardour build, I am able to get a few error messages.

The first one is for synthv1 and drumkv1, and it seems to suggest that SUIL was built against the wrong version of Qt:

suil error: Unable to open UI library /usr/lib/lv2/synthv1.lv2/synthv1_ui.so (/usr/lib/libQt5Gui.so.5: undefined symbol: hb_font_funcs_set_nominal_glyph_func)

The second one is for zynaddsubfx:

Gdk-CRITICAL **: IA__gdk_window_get_origin: assertion 'GDK_IS_WINDOW (window)' failed

It's worth noting that Zyn-Fusion, the latest version of zynaddfx from the AUR, works perfectly, so just bumping the version might solve that one.

I want to help fix this, any ideas?

Last edited by mrzapp (2018-03-23 07:18:13)

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: [SOLVED] No GUI in LV2 plugins in Ardour

suil 0.10.0-2
Last Updated: 	2018-02-18 23:18 UTC

Suil was rebuilt very recently, is your problem with 0.10.0-2 or 0.10.0-1 ?

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

mrzapp

Member

Registered: 2016-06-25

Posts: 4

Re: [SOLVED] No GUI in LV2 plugins in Ardour

Suil was rebuilt very recently, is your problem with 0.10.0-2 or 0.10.0-1 ?

I've just updated everything, so I assume it's 0.10.0-2, as that appears to be the latest version.
But then again, I'm getting no errors in the build from the offical Arch repos, so I can't say for certain.

Do you have any ideas of where to look, if the logs are clean, starting the app with commandline shows no errors, and nothing seems to be crashing?

Maniaxx

Member

Registered: 2014-05-14

Posts: 738

Re: [SOLVED] No GUI in LV2 plugins in Ardour

See here: https://github.com/rncbc/samplv1/issues … -372827802

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sys2064

mrzapp

Member

Registered: 2016-06-25

Posts: 4

Re: [SOLVED] No GUI in LV2 plugins in Ardour

Ok, so this is a bug in suil, and the workaround is to delete these lines in the *v1_ui.ttl

<http://samplv1.sourceforge.net/lv2#ui>
        a lv2ui:Qt5UI ;
        lv2:requiredFeature <http://lv2plug.in/ns/ext/instance-access> ;
        lv2ui:binary <samplv1_ui.so> .

Thanks!