[SOLVED] Ardour and Drumkv1 - failed to instantiate LV2 GUI

[BerlinBayBand]

When I add Drumkv1 to an Ardour midi channel I can't launch the gui via double klick. Too bad, I created some nice bongo samples and now I can't play with them

Ok, I've seen some posts with this issue e. g. here https://community.ardour.org/node/13450
but they seem either outdated or don't point to solutions.

Any suggestions how to go about this? Or what logs to post for support?

some details:
The build configuration reads: "LV2 UI embedding: True"
The Ardour log window reads: "failed to instantiate LV2 GUI"
Ardour 5.8.0 "Music for Airplay" (rev 5. Intel 64-bit
qmake --version reads: QMake version 2.01a Using Qt version 4.8.7 in /usr/lib/x86_64-linux-gnu
ubuntu 16.10 / Intel® Core™ i3 CPU 540 @ 3.07GHz × 4 / 64-bit

[sysrqer]

Are you using kxstudio repo? I saw something that sounds like this in a recent update there - viewtopic.php?f=47&t=17028#p81209

[rghvdberg]

Yes, big PITA.
For now a work around would be either fabla or the lsp sampler.

The v1 suite of plugins are really good tools though

[BerlinBayBand]

Are you using kxstudio repo?

Ok, so it's very likely a QT framework issue ... no, installed from source drumkv1-0.8.2.tar.gz

[rncbc]

Are you using kxstudio repo? I saw something that sounds like this in a recent update there - viewtopic.php?f=47&t=17028#p81209

it seems the latest ardour5.8+git is a dang PITA when dealing with LV2 plugins Qt5 UIs, being all of the vee-ones one fine example
well, just a different day, same sh*t all over again
byee

ps. you can try to build drumkv1 (and the othe other v1s) from source again, but now with ./configure --enable-qt4 ... hope it works. but then it is plain outrageous why ardour5 is shipping with unbelievable broken code to start with.

[rncbc]

The code is not broken, that's not the problem. I tested that qt5 embed thing and it works fine.
There's one problem that ardour official gcc5 builds use debian stretch, which contain a newer version than some other gcc5 systems include - like Ubuntu 16.04.

@BerlinBayBand: just run this:

Code: Select all

sudo sed -i "s/drumkv1_lv2:ui, drumkv1_lv2:ui_external/drumkv1_lv2:ui_external/" /usr/lib/lv2/drumkv1.lv2/drumkv1.ttl

which disables the qt5 ui, leaving the external.
should make it work once again.

and why the fsck have you to fix it on the v1 lv2ui .ttl side at all? ain't that enough evidence that ardour's is gone fubar?
nm. i'm outta here :/

[BerlinBayBand]

Well - aside from code astheics - it worked. The Drumkv1 is nice, spent two hours hacking around the bongo samples.
Can I mark the thread as [SOLVED] simply by changing the name?

Thanks falk, thanks guys!

@BerlinBayBand: just run this:

Code: Select all

sudo sed -i "s/drumkv1_lv2:ui, drumkv1_lv2:ui_external/drumkv1_lv2:ui_external/" /usr/lib/lv2/drumkv1.lv2/drumkv1.ttl

Note on this solution:
make sure that your LV2 plugin path actually is /usr/lib/lv2
They might just be stored in /usr/local/lib/lv2

[carpiphile]

I have yet to attempt this fix fro Ardour 5.8.0 on 14.04, but will test it out tomorrow. I have a simular issue with the newest Calf-audio-gear plugins. Is it possible this fix would also work for them and will I have to apply it on a per-plugin basis?

[folderol]

That seems rather bad. How does one package type affect another?

[folderol]

Thanks for that. Makes sense now.