On Thu, 29 Jan 2009, Linus Torvalds wrote: > On Thu, 29 Jan 2009, Daniel Qarras wrote: > > > > > https://lists.linux-foundation.org/pipermail/linux-pm/2009-January/019225.html > > > > > > Hmm. Does suspend/resume (STR) have the same issue? Or is > > > this purely a hibernation thing? > > > > Only with hibernation, suspend stays put. > > > > > > After unplugging the mouse the system also resume when > > > > plugging the mouse back. > > > > > > Sounds suspiciously like auto-suspend getting turned off. > > > What's surprising is that it was on in the first place - I thought > > > we defaulted to autosuspend off (for non-hub devices) regardless of > > > any suspend issues. > > > > FWIW, I have usbcore.autosuspend=1 in grub.conf... > > Ahh. Can you try removing that, and see if it causes that whole > hibernation thing? I doubt it will make any difference. That parameter setting merely changes the delay time before an idle device is autosuspended from its default value (2 seconds) to 1 second. Besides, the real problem isn't autosuspend at all, as far as I can tell. The first problem is that the computer wakes up immediately after going into hibernation. The second problem is that the computer wakes up from suspend immediately when a USB mouse is plugged in. > And it does sound like we probably then ignore your autosuspend > preferences at resume time and force it off. Adding Alan and Greg to the > cc, since they may actually know what is up.. I don't know what's causing the first problem (which has been around since 2.6.24). Maybe a firmware bug. Perhaps doing "rmmod ehci-hcd" before hibernating will help. To attack the second problem, it would help to see a dmesg log showing the immediate wakeup from a kernel with CONFIG_USB_DEBUG enabled. Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
