No C3 states after swsuspend/resume

No C3 states after swsuspend/resume

[Johan Vromans]

Hi,

I seem to have swsusp reliably going, with the exception that after
resume, the cpu won't enter C3 mode anymore (it does use C3 before the
first suspend). Any ideas what goes wrong, and where to look?

System is an Acer TravelMate 4001WLMi running Fedora Core 2, kernel
2.6.9-1.6FC2. The kernel is as supplied by Fedora, rebuild with Swap
Suspend enabled. 

-- Johan


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/

Re: No C3 states after swsuspend/resume

[Pavel Machek]

Hi!

> I seem to have swsusp reliably going, with the exception that after
> resume, the cpu won't enter C3 mode anymore (it does use C3 before the
> first suspend). Any ideas what goes wrong, and where to look?
> 
> System is an Acer TravelMate 4001WLMi running Fedora Core 2, kernel
> 2.6.9-1.6FC2. The kernel is as supplied by Fedora, rebuild with Swap
> Suspend enabled. 

Can you try again on vanilla 2.6.9? Does it still happen without usb?
				Pavel

-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/

Re: No C3 states after swsuspend/resume

[Johan Vromans]

Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org> writes:

> Can you try again on vanilla 2.6.9?

I'll give it a try.

> Does it still happen without usb?

Yes. In fact, when I boot in single user mode, and unload the uhci-hcd
module, all is well and C3 states are used. After suspend/resume, bus
master activity is ffffffff and never changes. I tried stopping all
processes and unloading all modules, but nothing seems to make a
difference.

-- Johan


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/