[ltp] suspend on kernel 2.6.8.1

[Michael Perry]

On Wed, 15 Sep 2004 16:52:44 +0200, Markus Nospers <markus@nospers.de> wrote:
> Hi,
> 
> Chris wrote:
> 
> >i just got 2.6.8.1 kernel compiled along with the latest stable acpi patch,
> >however the suspend is not working as the computer wakes up straight after it
> >is instructed to suspend, can anyone who got it to work already give me some
> >brief guide as how I can get it to work as well, thanks
> >
> >
> 
> You should check the msgs given before he wakes up.
> Look at dmesg. Usually this occurs if one device (on my T40 its the USB
> Controller)
> isn't able to suspend. You perhaps find something similar to
> "Unable to suspend device 0000:00:1d.7"
> So take a look at lspci an you'll see which device it is.
> In my case, with usb, I've to stop hotplug before suspending.
> 
> Markus
> 

I got this solved on an earlier ThinkPad T23 by removing the wireless
card. But the main problem still persists.  ACPI and APM cause loss
IRQ handlers all the time on the laptop and I get kernel panics when
it comes back.  I upgraded to the latest BIOS dated August 2004 and
also the Management Controller software.

I would check out either USB or networking as a culprit.  Its
interesting that XP Pro goes to sleep very well on the laptop but
Debian Linux unstable with a 2.6.8.1 kernel does not.  I don't think I
downloaded the latest ACPI stuff though so perhaps I should go try
that.


-- 
Michael Perry
meperry@gmail.com