Stuttering frames when window is out of focus


#1

Hi,
I’ve been working for a while on an installation that does dynamic video playback with a control interface. I have two of applications running : one is the user interface in charge of most of the logic, and the other is solely in charge of video playback. I recently discovered that if an OF app is not the active (focused ) window, the application will occasionally drop frames for a seemingly random amount of time. (The framerate estimate seems to remain constant during these stutters)

This is a dealbreaker with video, because it makes the playback stutter randomly, so I have to always make the video player screen focused (which means that the stuttering happens on the user interface, and will be an issue when a potentially clueless gallery curator doesn’t start everything in the right order).

Does anyone know a hack to make multiple windows focused on Ubuntu and whether that will fix the problem? Do you know if this is an OF problem or an Ubuntu problem?

Thanks!

Configuration:
OF10.0
Ubuntu 18.04 on an Intel NUC Hades Canyon


#2

A solution I found to this was to install and use openbox as the window manager