Re: [patch] PM: suspend/resume debugging should depend on SOFTWARE_SUSPEND

[Matthew Garrett]

On Mon, Nov 20, 2006 at 05:17:56PM -0500, Theodore Tso wrote:

> If someone has a suggestion for how I can save the power state of all
> of the various components in my laptop so that the laptop cna be
> brought back to the 18W state after a suspend-to-ram, I'm all ears....

A good start might be to compare the PCI configuration registers before 
and after suspend. However, I suspect it's more complicated than that. 
Are you using the closed ATI drivers? If so, it's possible that they do 
something at X startup that they're not doing on resume. A good 
comparison might be to see if the power consumption is dramatically 
different over suspend/resume if you only boot to text mode - that is, 
never start X at all.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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