I was rather proud of myself this morning: I actually managed to debug something vaguely significant, in C! I even used git blame. I feel all grown-up.
So if you're running Fedora 15 on your laptop and wondering why the screen only ever seems to get darker - it dims when you unplug it, or go idle, but it doesn't brighten up again when you stop being idle, or re-plug - take a look at the bug report, and maybe try out the scratch build I put up. It fixes it for me, I hope it will for you too.