I have a daru2 running ubuntu (Gutsy)
Last night while playing a dvd my laptop started making a very disconcerting grinding noise. It did it a few times within a span of a few minutes, after the dvd had been playing an hour or so. It seemed like the dvd skipped some or playback slowed when the grinding noise occurred.
This had happened at least once before on my laptop. I believe I had attributed it to excessive heat or the laptop being at a strange angle. On this occasion the laptop did not seem particularly hot and was sitting flat. I've searched through log files and haven't found anything notable occurring while the dvd was playing.
Also, I'm not *positive* it was the dvd player making this noise - I've heard similar noises from hard drives, but I can only recall my laptop making this noise while playing dvd's.