We have no guarantee it is ever emitted, the window manager is responsible for it. It can be heavily delayed or lost. So by my definition of reliable, that's the opposite of it. I don't follow why you mention the compositor; let's assume it is more reliable than non-accelerated window managers, we still need to support different window managers.
We have no guarantee it is ever emitted, the window manager is responsible for it. It can be heavily delayed or lost. So by my definition of reliable, that's the opposite of it. I don't follow why you mention the compositor; let's assume it is more reliable than non-accelerated window managers, we still need to support different window managers.