Power down after a shut down.

barlad · l33t Joined: 22 Feb 2003 Posts: 673

Hello there,

there is a little problem with my gentoo I would like to solve. When I do a "shutdown -h now" to shut down the computer, everything works fine but the process stops at "Power down" and the power does not go down, I have to turn off the power manually.

The option is enabled in the bios (actually, I don't think there is even that option in the bios but it works in windows XP so I assume it is "enabled"

) and I am pretty sure I configured the kernel properly : I activated the "power down button event" support.
I am using a P4 HT (smp system) on an ASUSTEK P4G8X motherboard with a 2.4.19-gentoo-r10 kernel.

If any of you has got an idea to solve the problem...

Thanks in advance.

xces · Guru Joined: 11 Oct 2002 Posts: 515

You'll need one of the powermanagement daemons, e.g. apmd or acpid. It depends on which flag you enabled in your kernel.
If you have enabled APM in your kernel emerge apmd otherwise emerge acpid. That should do...

barlad · l33t Joined: 22 Feb 2003 Posts: 673

ok, thanks much. I will look into it!

Tormented-Soul · Posted: Mon Mar 10, 2003 12:56 pm Post subject:

barlad · l33t Joined: 22 Feb 2003 Posts: 673

I didn't compile APM (I read in the help section that it was close to useless with smp system and since I own a P4 HT, I guess it's considered as a smp system). I did activate ACPI support though, I will emerge the daemon tonight and see if it works.

barlad · l33t Joined: 22 Feb 2003 Posts: 673

I just upgraded my kernel to 2.4.20-r1 (gentoo sources) and made sure to compile with the ACPI support. acpid is working perfectly. The shutdown still does not work though.

I am pretty sure ACPI is working though because when I press the "pwr off" button, the pc shuts down (although I still have to turn down power manually)

Guess I forgot an option or there is an incompatibility with my motherboard somehow.

dedeaux · Posted: Mon Mar 10, 2003 9:28 pm Post subject: acpi vs apm

I have had a dual p3 mb -- ecs d6vaa for a while and the shrinkwrapped distros have used apm w/o issue and shutdown powers off the machine.

In getting my install of Gentoo off the ground I am after a similar solution.
My machine won't power off either. I am using apm over acpi right now as acpi locks up the machine.

Can anyone share their setup who have similar hardware? Dual p3 via chipset. What kernel options you use, daemons, etc... Thanks.

CodeHacker84 · Posted: Mon Mar 10, 2003 9:37 pm Post subject:

I have an AMD K-6 400 based machine that I had the same problem with...in order to get the thing to shut down when I told it to, I had to enable the option "Use real-mode APM BIOS call to power off" under power management support under General Setup in the kernel configuration menu. If this option does what it says it does, that means a drop fom priveleged mode right before shutdown, and a BIOS interrupt call. I don't know how ACPI's interrupt vectors are set up, so I really don't know what effect this would have on a machine designed for ACPI, but it might do what you need it to.
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robfish · Posted: Fri Mar 14, 2003 2:14 am Post subject:

My solution (after reading several threads):-

Check motherboard and/or bios.
If ACPI is enabled then enable it in the kernel and disable APM (in the kernel)
Then emerge acpid
Then rc-update del apmd default
Then rc-update add acpid default
_________________
RobFish

kraylus · l33t Joined: 07 Jun 2002 Posts: 648 Location: ft.worth.tx

i dont think a p4 w/ "hyper-threading" counts as a smp system

compiling apm and enable apm at startup into the kernel should get you going though. i wouldn't use acpi unless you have to. i've heard bad things about it.
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ejahn1 · n00b Joined: 04 Mar 2003 Posts: 66

Interestingly, when I compile in either APM or ACPI support, I get a boot-time message from either the APM or ACPI daemon that kernal support for APM or ACPI doesn't exist. I've tried all sorts of combinations of settings but no luck. Next I'm going to try loading APM as a module instead of compiling in. Has anyone else had this problem (non-recognition of kernal apm/acpi support) and is there a work-around? I use the latest gentoo-sources kernal source.

ejahn1 · n00b Joined: 04 Mar 2003 Posts: 66

Update to last post:
autoloading the apm module didn't work either: upon booting it says "apm module failed to load". I am perplexed about power management in Gentoo, which is just something that always just "used to work" under other distros with this same hardware. Good thing I don't use a laptop...

CountZero · Posted: Mon Mar 17, 2003 7:25 am Post subject:

What worked for me was when you configure the kernel select the Power Management section, don't enable ACPI just Advanced Power Management BIOS support (compile it in, don't compile it as a module). That's it. It powers off just fine for me.

ejahn1 · n00b Joined: 04 Mar 2003 Posts: 66

Thanks CountZero, I tried that, but no luck. Whichever one I pick (APM, APCI, or both with the corresponding daemons activated) I am told at boot-up that kernel support for APM or ACPI doesn't exist. I think this might be a gentoo-sources kernel problem, but am not sure. My hardware is pretty simple: late model MSI motherboard with APM and APCI support.

Beekster · Apprentice Joined: 26 Nov 2002 Posts: 268 Location: Sydney

During my last round of "making a better kernel" earlier this month I had a similar problem. On shutdown, it woudln't power off, except the hard drives did shutdown or enter sleep mode. Was bizarre.

I'm running Gentoo-Sources 2.4.19-r10 on a P4 system, on an Asus P4TE (?? I think...) m/b.

Some experimenting led to using some of ACPI, and not APM. I'm sure APM had worked in the past, but hey, you go with what works.

Here's what I assume is the relevant part of my .config

Note that I haven't had to emerge either apmd or acpid to get powering off to work.

ejahn1 · n00b Joined: 04 Mar 2003 Posts: 66

Beekster wrote:

maxmg · n00b Joined: 11 Sep 2002 Posts: 6

if you're going to use apm over acpi, you might need some external program to keep the cpu cool - i used to have to run lvcool. i must stress i don't know if this is still an issue, or indeed how widespread that problem was (sony pcgfx 502, athlon processor)but given gentoo's cpu demands, it would seem best to chack first.

ejahn1 · n00b Joined: 04 Mar 2003 Posts: 66

I got ACPI/Power Down working

Not sure what I did differently this time. I recompiled, added some non-related SCSI support, played with devfsd.config stuff, and it works now. The dmesg quits complaining about lack of kernel support and loads apcid fine. It seems like a bug was squashed in the gentoo-sources kernel, but the version is the same, so beats me. Oh well, I'm happy.

beng · n00b Joined: 18 Mar 2003 Posts: 8 Location: Maryland, USA