Red Hat Bugzilla – Bug 596796
regression for 'suspend to ram/resume' on laptop asus f3sc
Last modified: 2011-06-02 11:00:08 EDT
Created attachment 417262 [details]
Description of problem:
I have just upgrade from Fedora 11, and found a big regression, trying
to suspend to ram my laptop (asus f3sc).
Where everything was fine on fedora 11, the laptop freeze on resume in fedora 13.
It goes to sleep fine as the log shows, but freeze at resume, even in init 3.
This is a big problem when you work with laptops.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
A perfect suspend to ram/resume function
Hummmm... I am not sure this is a kernel bug.
I have installed FC12 : suspend to ram/resume worked fine just after the installation.
After the update of the system, the resume failed as in FC13, even if I boot on the initial kernel (220.127.116.11-127.fc12.x86_64).
I do not know which update breaks this function.
Does someone have an idea ?
OK, I have found where is the problem.
I have followed this documentation : http://www.mjmwired.net/kernel/Documentation/power/basic-pm-debugging.txt
The problem happens at the [devices] stage, so I tried to suspend after unloading some modules.
And the guilty module is : 'atl1'
Suspend to ram/resume works fine after unloading it ! So the workaround is very easy.
It is tested on an up to date FC12. I have not yet reinstalled FC13, but I guess it is the same.
It is the same on FC13, and the workaround is valid.
The card is :
Ethernet controller: Atheros Communications L1 Gigabit Ethernet (rev b0)
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