Comment 404 for bug 541511

Brian, I've been using your latest ppa20+v9+cursorfix-generic kernel, and it has made my system usable again, unlike the previous attempts. The cursor freeze has disappeared, and I can once again watch videos in Dragon Player and VLC, neither of which could be used at all before. Oddly, flash video in a browser has always worked well, and the new kernel has not degraded performance there. The mouse cursor does still occasionally stutter, but there are no error messages that I can discover. Similarly, video sometimes stutters, but this seems to happen only on higher-resolution sources (like HD video), but I notice this only when playing fullscreen. Lower res video plays very well, including fullscreen.

The system still sometimes freezes solid, but this behavior is greatly reduced from previous kernels, and is now at an almost tolerable level. Unfortunately, a system freeze means just that, so I have no way to determine if new error messages appeared immediately before the freeze. Freezing doesn't seem to be triggered by any particular operation, such as certain mouse movements, and it can happen just as easily when typing in a Konsole or resizing a window as when watching a fullscreen video.