According to this thread http://howto.wikia.com/wiki/Howto_get_the_Linux_kernel_to_properly_power_down_the_Dell_Optiplex_GX240_using_ACPI it's a bug of the kernel (I'm using Knoppmyth R5F27). My Dell doesn't power off after calling halt. (I tried poweroff, shutdown, halt -p).

The thread gives a fix and finishes by "compile the kernel as normal".

I found a howto in knoppmyth for compiling a kernel, but it shows how to recompile all modules as well. Will I need to recompile every module as well? I'm afraid I'm gonna break everything if I try a big thing like this. Or is there an easier way to do it?

EDIT: thank to Greg Frost. Edit /etc/lilo.conf and add "acpi=force" in "append=..." and remove apm=poweroff and reboot

It should look like this :

Can you like with it for a few days. I might be able to use you as a guinea pig. I'd jump in head first if I were you, that is what I must do some times. Just do a backup before you compile and install. If something breaks, auto upgrade.[/code]

My diskless frontend is a Dell GX240 and I have the same issue. Are the knoppmyth kernel sources from R5F27 available for download somewhere?

You can use the source on the FTP. I'd just copy the current config and make old-config.

Forget compiling the kernel. My GX240 started powering down properly when I appended the boot option "acpi=force".

Greg : I tried this before, but it didn't work in my case, but it was with version R5F1.
Just to be jure. I have to add "acpi=force" in lilo.conf in the append string, don't I?

cecil: No problem, I can leave it as is if you need me to be a guinea pig. Just let me know what you want me to do.

Yes, in /etc/lilo.conf and then run the lilo command as root for that change to take effect. This is not the way I did it because in my case it is a diskless frontend. I had to add "acpi=force" to the append line in the file /tftpboot/pxelinux.cfg/default.

Greg Frost: you are lucky. I just came back from the office, I tried to force acpi with no luck. It still doesn't power off. I think I have to compile kernel.

You did reboot after the lilo change, right? As it won't take effect until a boot.

yes I did!

Well, I don't know what to say other than it works for me on my diskless frontend. Could this be effected by bios settings? You have carefully checked them right? When I get home I'll have a look at the BIOS version that I'm running and see what settings I have.

Great. Let me know when you are back. I got the last bios I found on dell website . A05.

I had a look at the BIOS. I am running A04. I couldn't see any settings in the BIOS that looked like they were ACPI related

I'm gonna try to recompile Kernel this week and I will let you know

it gives me headache. I looked for the file "boot.c" in : arch/i386/kernel/acpi/boot.c , it's not there. Only Makefile.

So I though it was because I didn't have the source. On the FTP, the only file I found is a *.deb. I don't how to extract file from a deb package.


I tried the beginning of Compile Kernel from this thread http://mysettopbox.tv/phpBB2/viewtopic.php?t=9218&highlight= as well and I got an error:



Can someone give me some tips?