Resizing waveform display breaks if mouse moved too quickly

[savvag44]

Bug Description

Hi :)

When making the waveform display smaller using the mouse, if the mouse is moved up too quickly the mouse 'defocuses' and cannot be used until clicked again. Also, the waveform display flicker slightly.

Mixxx 2.4.1 running on Kubuntu 24.04 using wayland (may be the culprit).

Video of bug: https://youtu.be/ghe-V_tEkNk

Version

2.4.1

OS

Kubuntu 24.04 (Linux)

[yours7himanshu]

@savvag44 I wanted to work on this issue can i try?

[ronso0]

Hej @yours7himanshu
Anyone can work on whatever issues they want.
First step would obviously be to reproduce the issue, then try to figure if it's an issue with Mixxx or one of its dependencies.
Here specifically, it would you'd need to check if it occurs only with Wayland or also with X11.

[savvag44]

While testing this issue again (and another one where mixxx crashed if the waveform display was turned off and on, giving a segmentation fault), I wanted to look at the logs so started mixxx from the command line with "mixxx --developer --safeMode --logLevel info 2>&1".

After doing this both of the issues suddenly disappeared, even after rebooting the computer and starting mixxx normally again.

My guess is that it is/was something wayland/qt related, maybe enabling safemode (disabling opeGL stuff) somehow did something, not sure.

[JoergAtGithub]

I wanted to look at the logs so started mixxx

The last logs are stored in files, you don't need to open Mixxx to read them: https://github.com/mixxxdj/mixxx/wiki/Finding%20the%20Mixxx.log%20file