On Tue 2009-02-10 15:24:48, Rafael J. Wysocki wrote: > On Tuesday 10 February 2009, Pavel Machek wrote: > > > Hi! > > > > > > > > > > Just a FYI, with my Acer Aspire 1690 using 2.6.29-rc3 > > > > > > > suspend/hibernate behave in this manner: > > > > > > > > > > > > > > Hibernation completes ok but resumes immediately as if > > > > > > > I would have pressed the power button. > > > > > > > > > > Thanks a lot for the tip, indeed it makes hibernation > > > > > working again: > > > > > > > > > > root@localhost:~# echo shutdown > /sys/power/disk > > > > > root@localhost:~# pm-hibernate > > > > > > > > > > Great! Is there a way to make this default on my > > > > > system, e.g., with a quirk? > > > > > > > > Well, it would be better to fix it properly, than just work > > > > around it with quirk. I think it worked before and you already > > > > identified commit that breaks it? > > > > > > Yes, we found out it with Rafael last month: > > > > > > https://lists.linux-foundation.org/pipermail/linux-pm/2009-January/019225.html > > > https://lists.linux-foundation.org/pipermail/linux-pm/2009-January/019244.html > > > https://lists.linux-foundation.org/pipermail/linux-pm/2009-January/019251.html > > > > Hmm, hibernation rework broke that, and looks USB related. Maybe it is > > fixed in latest kernel (-rc4), as there were USB-keeps-systems-awake > > fixes. > > AFAICS, it is a chipset/BIOS problem. > > As long as we were using shutdown to turn off the box during hibernation, > things worked on these boxes. As soon as we started using the ACPI "enter S4" > feature, it stopped and ehci-hcd always happens to be the culprit (I had access > to one box with this issue, but unfortunately I don't have it any more). > > The only thing we can really do here is to blacklist all of the boxes with this > problem and handle them in a special way. Well, if unloading uhci/ohci/ehci helps, there should be a better solution than a blacklist. But... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
