Bug 485583 - Immediate wakeup after suspend to ram
Immediate wakeup after suspend to ram
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
All Linux
low Severity medium
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
: Triaged
Depends On:
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Reported: 2009-02-14 16:30 EST by Piergiorgio Sartor
Modified: 2009-12-18 02:55 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-12-18 02:55:18 EST
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Description Piergiorgio Sartor 2009-02-14 16:30:35 EST
Description of problem:
Performing a suspend to RAM with an ASUS M2NPV-VM results in an immediate wakeup, just after the suspend.

Version-Release number of selected component (if applicable):

How reproducible:
Under "standard" hardware conditions, always.
Some hardware changes result in proper S2R.

Steps to Reproduce:
rtcwake -s 30 -m mem
Actual results:
The PC goes into S2R and it wakes up immediatly.

Expected results:
The PC should stay 30 seconds in S2R and then wakeup.

Additional info:
First of all, it seems there are already some reports about this board and/or a similar problem, see:

One possible solution seems to enable the USB stdby power, changing some motherboard jumpers.
In this case the solution is not acceptable, since I do not want to power any USB device during S2R.
Another suggestion is to disable USB wakeup from /proc/acpi/wakeup, but with this kernel everything seem to be already disabled there.
Furthemore, someone suggested to remove the USB modules just before S2R. This is also not possible, since the keyboard is USB...

Second. If I detach all USB devices, then the S2R works. Maybe until some USB peripheral is attached.

Final word. It seems to me that S2R was working some kernel ago, maybe with F9, not really sure.

If there is any koji kernel to test, please let me know.


Comment 1 ArmEagle 2009-05-09 07:22:23 EDT
Though you did more searching and got some decent ideas, just pointing to 
https://bugzilla.redhat.com/show_bug.cgi?id=471672 (specifically mentioning second attempt)
https://bugzilla.redhat.com/show_bug.cgi?id=463097 (which doesn't mention that).

My experience so far has been that if I alternate between suspend and hibernate, suspend will keep working as if it was the first time.
Comment 2 Piergiorgio Sartor 2009-07-03 15:51:13 EDT
It seems that kernel- fixes the issue, at least under F-11.

Comment 3 Chuck Ebbert 2009-07-09 21:20:03 EDT
Try from updates-testing if it ever gets there.
Comment 4 Piergiorgio Sartor 2009-07-10 07:55:28 EDT
(In reply to comment #3)
> Try from updates-testing if it ever gets there.  

Ops, sorry, I thought comment #2 made clear I upgraded to F-11, so I cannot test the new kernel for F-10, in this respect.

Maybe others can...

Thanks anyway,

Comment 5 Bug Zapper 2009-11-18 06:06:34 EST
This message is a reminder that Fedora 10 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
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Comment 6 Bug Zapper 2009-12-18 02:55:18 EST
Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is 
no longer maintained, which means that it will not receive any further 
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