I also think this might have something to do with battery level... It seems that both times this happened recently, although the laptop was plugged into AC, the battery was at a very low level. I'll pay attention if/when this happens again...
devnull wrote: > This happens to me too (with ICH7 family chipset). > > I also get weird headphone behaviour, where sometimes the headphones > refuse to work and sound comes out of the internal speakers no matter > what I do. > > I suspect that the detection of headphones is somewhat broken, and > perhaps the 'no sound' problem is related. Perhaps the sound is directed > to the headphone jack, but as line out? > > -- Sound works sometimes on boot - sometimes not https://launchpad.net/bugs/57455 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs