All my applications scale perfectly fine (in that they just don't change their scale factor when moving from monitor to monitor). But somehow lmms scales very weirdly. The main monitor shows the program way too large (like in the photo, that is fullscreen) and my side monitor shows the application in slightly too small scale and the text is miniscule. This video shows the difference between the two:
https://youtu.be/r8IIEwjYbEo
Does someone know what might be going on here?
I'm running Debian 12 with Gnome 43 (seemingly X11) with the website version of lmms (stable)
I remember managing to get this issue solved on my computer. Looks like a QT issue. I may not remember exactly how I fixed it, but try the solutions in this thread and see if it works:
https://lmms.io/forum/viewtopic.php?t=34104
In particular run export QT_AUTO_SCREEN_SCALE_FACTOR=0 and then run LMMS from the same terminal.
Also in response to other comments, LMMS is actively being worked on (though updates have been slow) -- the last commit on the master branch was from 3 days ago, so that suggests that the project isn't abandoned but development's just rolling slowly.