Audio stuttering on self-compiled build of LMMS

[Gregaras]

System Information

GNU/Linux, Manjaro distribution

LMMS Version(s)

1.3.0-alpha.1.972+668e80d

Most Recent Working Version

1.3.0-alpha.1.972+668e80d

Bug Summary

The audio stutters whenever I add a some effects in the song while I play it in self-compiled build of LMMS. Meanwhile, it does not happen on official build (Appimage).

Expected Behaviour

Self-compiled build should have same audio quality as official build.

Steps To Reproduce

I don't really know how to reproduce it, try to compile LMMS on your own machine maybe?

Screenshots / Minimum Reproducible Project

Here is the stuttering I'm talking about, self-compiled build:
https://github.com/user-attachments/assets/a8a9996d-8e88-4aa7-8240-c489bb675526
Does not happen on official build:
https://github.com/user-attachments/assets/3de1a077-d346-453d-b5cf-a215bc9e9d55

Buffer size is set to 4096 frames, audio interface SDL.

I was building LMMS without having the latest updates of the system, I tried to update it, remove the files from build directory and recompile again but had same results. I didn't actually try to build pure master version with an updated system, I built the master version with some small edits of mine, I will probably try to rebuild pure master to make sure that the issue is not in the code, but most likely it won't be.

Please search the issue tracker for existing bug reports before submitting your own.

• I have searched all existing issues and confirmed that this is not a duplicate.

[yohannd1]

Haven't been able to look into the videos yet, but a question in advance: what commands have you used to build it? And does the issue also happen in the AUR script (lmms-git)?

[Gregaras]

what commands have you used to build it?

mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=../target/ -DWANT_DEBUG_CPACK=ON
cd ..
NO_STRIP=true cmake --build build --target package -j4

My intention is also to build an Appimage.

I thought that I failed to properly update the repository, I only used git pull command, looks like I had to execute more commands, which were git remote update, the pull command and then git submodule update --init --recursive, but even then the stuttering problem didn't disappear (after removing the build folder and recompiling) (built the pure master without any code edits).

does the issue also happen in the AUR script (lmms-git)?

It does.

[yohannd1]

Oh, that's odd. My only guess at this point is maybe that you should've passed -CMAKE_BUILD_TYPE=RelWithDebInfo to cmake on the 3rd line.
cmake .. -DCMAKE_INSTALL_PREFIX=../target/ -DWANT_DEBUG_CPACK=ON CMAKE_BUILD_TYPE=RelWithDebInfo
Hopefully that should work but I was almost sure cmake defaulted to release builds anyway...

[Gregaras]

Oh, that's odd. My only guess at this point is maybe that you should've passed -CMAKE_BUILD_TYPE=RelWithDebInfo to cmake on the 3rd line. cmake .. -DCMAKE_INSTALL_PREFIX=../target/ -DWANT_DEBUG_CPACK=ON CMAKE_BUILD_TYPE=RelWithDebInfo Hopefully that should work but I was almost sure cmake defaulted to release builds anyway...

Doesn't work unfortunately... Maybe some package could be downgraded?

[Gregaras]

Tried to compile LMMS on a fresh install of Manjaro, same thing.

[yohannd1]

Whoops, forgot to reply! I sadly don't really have any ideas as to what might be happening at this point... Let's hope someone chimes in.