Re: suspend-to-ram hangs on HP NX7010

[Pierre Ossman <drzeus-list-p3sGCRWkH8CeZLLa646FqQ@public.gmane.org>]

Pierre Ossman wrote:

> I have, however, pinpointed where in the kernel it hangs. It stops 
> while writing the SLP_EN bit. I guess that's where it should actually 
> go into sleep mode. The bit is set in two registers but the hang is 
> when it writes the first one. Changing the order of them still causes 
> the first one to hang (B in that case). I also tried combining 
> SLP_TYPx and SLP_EN but again, hang during the first write.
> I'm out of ideas now so I *really* need some tips on what to try next. 
> There is nothing more to debug around the crash-point so the problem 
> must be somewhere during the preparation.

I can also point out that when suspending to S4 or S5 the machines 
powers off after the first write (where it hangs during S3).



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