Bug 1992 – Linux: built-in real-time preview effects crash

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Audacity 3.0.3 development began 19th April 2021

Audacity Bugzilla

Bug 1992 - Linux: built-in real-time preview effects crash


Summary:	Linux: built-in real-time preview effects crash

Status:	RESOLVED FIXED

Product:	Audacity
Classification:	Unclassified
Component:	Built-in FX
Version:	2.3.0
Hardware:	Per OS Linux

Importance:	P1 RepeatableAll
Assigned To:	Default Assignee for New Bugs

URL:
Keywords:

Depends on:
Blocks:
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Reported:	2018-10-02 16:03 UTC by Steve Daulton
Modified:	2018-11-26 10:01 UTC (History)
CC List:	4 users (show)

See Also:
Steps To Reproduce:	Apply any built-in real-time preview effect. Audacity crashes
Release Note:
First Git SHA:
Group:	---
Workaround:
Closed:	2018-11-16 00:00:00

Flags:	stevethefiddle: Regression+

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Description Steve Daulton 2018-10-02 16:03:00 UTC

This occurs with tags/Audacity-2.3.0 built on Ubuntu 16.04.
Bug occurs whether built against wx3.0.2 or 3.1.1

Audacity crashes on applying any built-in real-time preview effect.

Bug has also been reported in flatpak version of 2.3.0 release, and "Ubuntu Handbook" (Panda Jim) PPA with Kubuntu 18.10.

This is a regression against Audacity 2.2.2.

Comment 1 Steve Daulton 2018-10-02 17:42:13 UTC

Fixed committed
https://github.com/audacity/audacity/commit/a17af37

Comment 2 David Bailes 2018-10-03 14:29:42 UTC

(In reply to Steve Daulton from comment #1)
> Fixed committed
> https://github.com/audacity/audacity/commit/a17af37

In this fix, if !focus, then parent is not initialized...

Comment 3 Steve Daulton 2018-10-03 16:15:58 UTC

(In reply to David Bailes from comment #2)
Good point David.
Fixed at https://github.com/audacity/audacity/commit/8880e1b

Comment 4 Peter Sampson 2018-11-16 13:06:42 UTC

(In reply to Steve Daulton from comment #3)
Max Maisel wrote on the devel email list

>This issue is fixed for my in master (at a18680647...) 
>so the fix should work.
>
>I did the following on an Ubuntu 18.04 machine:
>* Open some audio file.
>* Click play button.
>* During play, open Distortion effect.
>* Change effect parameters and head the changes during play.
>* Clicking skip forward and skip backward works as well.