[linux-pm] ASUS K53E fails to suspend if ehci_hcd is loaded

Alan Stern stern at rowland.harvard.edu
Fri Jun 17 07:14:16 PDT 2011


On Fri, 17 Jun 2011, Andrey Rahmatullin wrote:

> > Okay, the next step is to try and find out exactly where the ehci 
> > suspend procedure is hanging.  The patch below adds a bunch of 
> > printouts at various spots throughout the procedure.  Let's see what 
> > shows up.
> I don't see any of these new messages.

Are you sure the new ehci-hcd.ko module was loaded when you ran the 
test?

Another thing you should do when testing:

	echo 9 >/proc/sys/kernel/printk

(Or equivalently, Alt-SysRq-9 on the keyboard.)  I should have
mentioned that before sending the test patch.  Oh well....

Alan Stern



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