Never had a problem with the poweroff command untill now using FC3. Ive been using linux since the start of redhat 8 on the same machine. I always hear a click in the atx power supply and a prompt poweroff before... Now, the machine stays on stating 'poweroff' at the end of the messages, BUT, I still hear the click as if it wants to power off after I ussue the command. Anyone else have this problem?

I experienced this with the release candidates. I'll have to power off a bit later and see if this problem still persists.

Ok, the problem was still there but I added the following line

acpi=ht

to the kernel part of my /boot/grub/menu.lst and it powers down fine. The only thing still baffling me is why nothing shows up on the screen (i.e. shutdown messages) until it's almost powering off.

Hey thanks! That works fine!

title Fedora Core (2.6.9-1.667)
root (hd0,1)
kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00 rhgb quiet acpi=ht
initrd /initrd-2.6.9-1.667.img

I also can't get my machine to shutdown & poweroff on FC3. I have a Soyo Socket A mobo with a Barton 2600+. Is your machine a hyperthreading P4? I thought "acpi=ht" is just for hyperthreading.

I'm trying to figure out if my BIOS is in the blacklist, and what changed from FC2 to FC3 to cause this.

I have the same problem too....

Well, have to try that line above

My machine is an Athlon XP 2000 with a SIS based chip on the motherboard.

Well, oddly enough, adding "acpi=ht" to my boot line works!

I have a Soyo Socket A mobo with an Athlon XP Barton 2600+/333 CPU. All the documentation I could find for "acpi=ht" says its for hyperthreading, which is a P4 thing.

An odd little quirk....

I thought it was a bit odd as well, but I noticed that Mandrake uses by default and it works fine on My athlon based machines, so I thought I'd check it out and luckily it worked.

Thank you, that was happening to my fc3 machine too. (not powering off)

Cheers!

That worked for me too - thanks! I've got a p3 (laptop) that I KNOW isn't hyperthreaded, but what the heck.

tmd

I think acpi is turned off by default in the newer kernels. So, while booting up, mentioning the kernel name followed by acpi=on might also work.

I'm experiencing the FC3 power off problem (Abit KT7-RAID, AMD Athlon) ... "acpi=ht" seems to be exactly like "acpi=off", and I say that just because "athcool", an utility to keep cool the CPU which relies upon ACPI does NOT work with "acpi=ht".

I upgraded from FC2, FC1, RH9, RH8.... and until FC3, the system always does auto power off.
ideas ?

Hi,

I have the same problem but slightly different.

Motherboard - MSI 645E Max Series, SiS 654DX and 962L Chip sets, ACPI support
Pentium 2.4 not HT and 1024MB RAM

Trying to Shutdown and Reboot from main login menu after KDE session results in a blank screen and if I press a key I get a console screen with the "Shutting Down System - Please Wait" message. Same for rebooting.

Then nothing except I can hit the keys on my keyboard and if I press escape I can get a login!

The apic=ht setting in Grub lets me poweroff using the power switch but I have to reset if I want to reboot.

In Windows XP Pro I have no problems .



Is this a Kernel issue? I had no problems with FC2 or Mandrake 10.0.

Regards

Anthony

Now I've found a fix for the problem. I went through my list of services and turned off those I did not require to run my system.

irqbalance is probably the suspect service but there are others I was suspicious of and diabled.

I have kept apic=ht in my grub.conf and there seems to be no side effects.

Anyway, I can shutdown and reboot normally now.

Regards

Anthony Attare