Strange Power Management Problem

**Rye** · 10-28-2005

I just got a new computer and installed slackware 10.2 on it. When I shutdown everything seems to turn off (cpu fan stops, monitor turns off, computer makes no sounds) except my usb mouse is still glowing... I know on my old computer when it shutdown it would leave a message on the screen saying something like "now safe to shut off power" and I had to add apm to my rc.modules file but I have apm built right into the kernel on this machine. I'm using the 2.6.13 kernel found in /testing recompiled for high-mem support (that was the only change I made). Here's the output of some stuff that might help:

Code:

root@slackware&#58;/boot# modprobe apm
FATAL&#58; Module apm not found.
root@slackware&#58;/boot# dmesg | grep "apm"
apm&#58; BIOS version 1.2 Flags 0x07 &#40;Driver version 1.16ac&#41;
apm&#58; overridden by ACPI.
root@slackware&#58;/boot# apm
No APM support in kernel

I googled the "apm: overridden by ACPI." thing, and it seems APM is sort of an older version of ACPI? I've tried with APM built into the kernel, as a module, and without it completely and nothing seems to work.

Any help would be appreciated!

**borromini** · 10-28-2005

You shouldn't use APM. As you already guessed, it's deprecated and has been replaced by ACPI.

**Game master pro** · 10-29-2005

Have you got ACPI enambled in the BIOS?

**TheBigPhish** · 10-29-2005

From my experience, a majority of the weird quirks i have seen with my configuration (and a bunch other on older systems) has been ACPI actually... Apparently there were different implementations of it, and some of them were not a hundred percent compliant w/ the standards...thus leading to weird interactions between modules and BIOS and settings...

Weird thing is, i have an ACPI mobo in my laptop which functions better W/O APCI installed or moduled! YmmV

**borromini** · 10-29-2005

I have a common nForce2 motherboard, as for ACPI, I didn't experience problems up until now (except for suspend to RAM but that seems still to be a problem on numerous linux boxes).

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