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Topic: ACPI/APM Suspend?, Toshiba Portege 3025< Next Oldest | Next Newest >
sfabius Offline





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Posted: Feb. 26 2007,02:30 QUOTE

I am trying to get this laptop to suspend to ram, and then it will be ideal. I have searched the forums and googled and tried numerous things which don't work.
ACPI works except for suspend. I read on one of the pages that the 2.4 kermel doesn't support S3 state. I tried anyway and, no it doesn't. I did "modprobe toshiba_acpi" and "modprobe ac" etc.
OK, so I'll try APM, I think, which is reported to work on a site putting Debian on this very machine. So I add "noacpi" to grub. ACPI seems to load. I try "acpi=off" and the machine hangs on boot (just after reporting  the CPU speed).
I know the machine can do it; if I hit the power button while in grub, it suspends. Is there a way to turn it over to bios?
I would like a suggestion on what to try next, if anyone can think of enything!
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Juanito Offline





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Posted: Feb. 26 2007,03:35 QUOTE

I've tried ACPI "suspend to ram" with a Dell laptop and DSL-N - one thing I found is that waking your machine up sucessfully may depend on how you booted DSL in the first place.

I have seen several reports stating that you need to unload the USB modules prior to suspend and load them again on resume - I boot DSL from USB so it is unlikely to work for me.

Also, on my Dell machine I need to add extra commands to wake the screen up after a "lid" event which would presumeably be needed after a "suspend to ram".

I'd like to get "suspend to ram" working on my machine too - let me know how you get on.
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sfabius Offline





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Posted: Feb. 26 2007,16:26 QUOTE

I'll deal with waking if I ever get to sleep  :)
I was look at this site and it said to do the following to get ACPI suspend to ram to work:
Code Sample
echo mem > /sys/power/state
but there is no file of this name in my (frugal) installation. I see that CONFIG_ACPI_SLEEP is compiled into the kernel, so it seems like it should be there. In fact, there is nothing in /sys.
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Juanito Offline





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Posted: Feb. 26 2007,17:18 QUOTE

This is the command for the 2.6.x kernel (i.e. DSL-N) - 'works for me except that my laptop goes into a coma...

You have to do something different (as far as I remember) in the 2.4.x kernel.
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sfabius Offline





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Posted: Feb. 26 2007,18:00 QUOTE

Ok. So a search for kernel 2.4 ACPI suspend turns up this very informative page (refreshing in its straightforwardness). It is here that it says "S3 is currently _not_ supported by the 2.4.x kernel series in Linux." That would be my main problem.
But still, then, why can't I boot with ACPI=off?
I didn't realize we could get a 2.6 kernel with DSL. I will have to investigate how to do that. If you have any howto suggestions, please let me know!
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