Re: ehci_hcd related S3 lockup on ASUS laptops, again

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On Wed, Apr 11, 2012 at 05:13:51PM -0400, Alan Stern wrote:
> > I replaced the hcd_pci_suspend_noirq call with retval=0 and suspend/resume
> > was successful.
> This indicates that your computer doesn't like to suspend while the
> EHCI controllers are in D3hot.  I have no idea why not.
> If you want a really thorough test, try changing 
> drivers/pci/pci-driver.c:pci_pm_suspend_noirq.  In the "if (!pm)" 
> clause, add a call to
> 	pci_prepare_to_sleep(pci_dev);
> just after the pci_save_state line.  Then try suspending with the 
> script enabled (ehci-hcd unbound from the controllers).  If this fails 
> then we'll know it is the source of the trouble.
Looks like it works even with this line added.


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