LMMS / LMMS/lmms

Lmms Vestige cannot open Carla's GUI when loading Carla as VST2.

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bug vst
Dominant language
C++
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Description

Bug Summary:
Carla's 2.1.1 GUI cannot be opened after loading it as VST2 both on Windows and Linux Wine.

Steps to reproduce:
Download lastest Carla 2.1.1 from KX Studio site, load it as VST2 plugin by selecting CarlaVstShell.ddl from carla.vst folder. Plugin loads but Carla's GUI cannot be opened by "Show/hide GUI" button.
If i run Carla standalone in Windows or in Wine I'm able to open Carla in Carla as VST2 (able to open CarlaVstShell.ddl plugin).

Software versions that i tested:
LMMS 1.2.1, Carla 2.1.1 32 and 64-bit on Windows 10 and Wine 5.10 staging.

Log acquired by running Lmms on Linux through console:
https://pastebin.com/PhYcekZH

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by reproducing the failure with CarlaVstShell.dll and the Show/hide GUI button using the listed Windows and Wine versions. Review the linked console log and the VST2 GUI-handling entry point; done means Carla's GUI opens successfully when loaded as a VST2 plugin.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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