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Old 07-02-2004, 06:01 PM   #1
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Registered: Apr 2003
Location: Minnesota, USA
Distribution: Slack 10.0 w/2.4.26
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Desktop w/ ACPI support...

I've tried searching, so don't yell at me too much. Just about every thread that has to do with ACPI and sleeping I've found have to do with laptops and having the screens turn off when you shut them. How can you get a desktop to go into a lower powerstate with ACPI? I have a 2.4.26 kernel with ACPI built in:[*] ACPI support
<M> Button
<M> Fan
<M> Processor

all of my other acpi objects are blank. Should I change them from M to Y? And should I include themal zone?
I also have append="hdd=scsi-emulation acpi=on" in my /etc/lilo.conf file.

Okay, I modprobe my button, fan, and processor modules, and here's the output from my /proc/acpi/processor/CPU0/info
processor id:            0
acpi id:                 1
bus mastering control:   no
power management:        no
throttling control:      no
performance management:  no
limit interface:         no
active state:            C1
default state:           C1
bus master activity:     00000000
   *C1:                  promotion[--] demotion[--] latency[000] usage[00000000]
    C2:                  <not supported>
    C3:                  <not supported>
limit, performance, and throttling all say
<not supported>

Last edited by r_jensen11; 07-02-2004 at 06:18 PM.
Old 07-02-2004, 10:05 PM   #2
Registered: Nov 2003
Location: austria
Distribution: debian
Posts: 667

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actually you can put 'em to sleep with "echo 1 > /proc/acpi/sleep" change 1 to the desired (supported) sleep-mode. if you use your acpi frequently i suggest to build it into the kernel. you can take a look at your dmesg output for supported modes.

sl mritch.
Old 07-03-2004, 12:17 AM   #3
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Registered: Apr 2003
Location: Minnesota, USA
Distribution: Slack 10.0 w/2.4.26
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Well, according to dmesg, I only have C1, altough /proc/acpi/sleep says S1 S3 S4 and S5.... All C1 seems to do for me is to lock the computer where it's at until I press the button on the computer, then it responds again, but it never quiets down or goes into a lower powerstate. But if I do "echo 5 > /proc/acpi/sleep" the computer shuts down real quick.

ACPI: Processor [CPU0] (supports C1)
ACPI: Power Button (FF) [PWRF]


Do I have to patch in 's acpi drivers, or can I get this working with what's in the 2.4.26 standard kernel?

Well, it looks like says pretty much what I'm experiencing. There's no S2, S1 merely locks the processor from getting more commands, S3 and S4 aren't supported with the 2.4.x kernel, and S5 is basically a "Soft" poweroff, although it doesn't appear to unmount partitions at all....

Last edited by r_jensen11; 07-03-2004 at 12:36 AM.


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