Messages in this thread |  | | | Date | Fri, 04 Feb 2011 20:38:31 +0100 | | From | Jiri Slaby <> | | Subject | Re: [linux-pm] Resume hangs [was: mmotm 2010-12-02-16-34 uploaded] |
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On 02/04/2011 08:33 PM, Alan Stern wrote: > On Fri, 4 Feb 2011, Jiri Slaby wrote: > >>>> It seems to suffice... No hangs still. Should I enable pm_async back >>>> again to confirm the issue is still present? >>> >>> Yes, please, it would be good to know for sure. >> >> Ok, confirmed right now :). >> >> I disabled pm_async for USB again. What do you suggest next? > > What happens if you leave pm_async enabled but unplug all the USB > devices before suspending?
Then I cannot suspend at all (ENOINPUTDEVICE)... And this would be painful as the bug occurs once a week or so.
> If there are any USB devices you can't > unplug, you can get an equivalent result by unconfiguring the root > hubs: > > for a in /sys/bus/usb/devices/usb* ; do > echo 0 >$a/bConfigurationValue > done
Well, I can put this into suspend/resume scripts. What's the opposite operation? 1 > $a/bConfigurationValue? thanks, -- js
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