S3 experience on Thinkpad 570E

[Nate Lawson]

Andrea Campi wrote:
> Hi,
> 
> I've tried using S3 on -CURRENT, more in response to Nate's request than
> out of need, since S4BIOS is working great on this PC.
> 
> In a nutshell, acpiconf -s3 powers down; on powerup however the machine
> is deadly slow. I replicated this with a stripped down kernel; the only
> thing that was evidently wrong is that the clock slowed down from 1000 to
> around 250 interrupts per second.

It sounds like the clock interrupt source is not getting saved/restored 
properly if it slows after a resume.  I am not sure how to solve this. 
Perhaps John has something to add.

-- 
Nate