Comment 13 for bug 327311

I also have a MacBook 4,1, currently running Lucid amd64, and I'm experiencing this bug too. In fact, it's been happening ever since Hardy, sometimes very frequently, sometimes only rarely, and always in a very unpredictable manner. On my machine it's primarily the touchpad that tends to be sluggish after resuming from suspend, less so the keyboard (or perhaps I'm just using the touchpad more than the original submitter).

I have a looming suspicion (but I can't prove for sure) that the probability of a sluggish touchpad increases when an external USB device (like a hard disk or an mp3 player) had been connected earlier during the same session but wasn't any longer when going into suspend mode. Also, in earlier Ubuntu releases (before plymouth), there were sometimes text mode messages about interrupts not having been cared about while resuming. Whenever one of those appeared the touchpad and/or keyboard was certain to be unuseable.

I'd be happy to help resolve this bug. I don't have 50 euros to spare (blame it on the MacBook), but feel free to ask for log files, modprobing, lspci output, whatever.