You are not logged in.
When I've got Beryl running, GL applications like BZFlag or glxgears will show through windows that are on top of them. See the screenshot below for an example:
This happens even when I force X to make all rendering indirect. Also, when I drag the window of an OpenGL application, the contents stay behind until I let go of the window:
What is going on here, and how can I fix it?
Offline