On 2011-01-11 15:13, NanbaRoku wrote:
> On 2011/01/10 11:03 AM, Carlos E. R. wrote:
>> You should try “halt” in a text console, with splash=verbose in the
>> kernel line in grub, so that you see all messages as it halts.
>>
>
> When I did this, the last thing I see is a login prompt and then the
> system shuts down, but does not fully power off.
A login prompt? Weird.
>> I think that your system is powering down to a state where a key press
>> should restart it. Check if the bios config has anything related to this.
>>
>
> I have been in the bios numerous times looking at the power settings and
> have tried just about every combination of settings.
> You are correct. I enabled wake on a keyboard stroke and that does
> restart the system.
Well, that’s something at least.
> It seems that modern motherboards are designed for people who are too
> lazy to turn off their computer fully and don’t want to have to use the
> power button to actually turn the computer on. ASUS wants to use the
> power button to act as a turbo switch for gamers. They offer a Windows
> utility to configure the behaviour of the power button, but there is no
> support for Linux users.
>
> It appears that the default behaviour is to suspend the system and there
> is no option that I can find in the bios or in the manual alter that
> behaviour, unless your running Windows.
>
> These marketing half-wits like to promote “green” products that are
> always using some power unless you yank out the power cord! The power
> switch is no longer a power switch, it’s just a standby button.
All machines power off incompletely, nowdays. The power switch in the front
of the box is not a mains switch, but a push button powered by a low
voltage circuit of the PSU, that triggers full power on/off. This low power
circuits allos things like power on lan, or on keyboard event, or time ago,
with the modem ring.
This is the reason for having a small switch at the back of the computer.
Me, I have a… how do you call it… a multiple socket array with surge
protection. First I do “halt”, then I switch off the mains for all computer
gadgets. I feel safer.
Idea: BIOS upgrade, did you look?
>> Otherwise, report in Bugzilla.
>>
>
> I suppose this is a bug, but is it system specific. A Linux live CD
> works OK, but the installed OS does not. The question is, is it kernel,
> acpi, motherboard, bios, video card/drivers …?
kernel, I think; acpi is part of the kernel, too. Even if it is similar to
the other report mentioned or you have doubts, report it, let then figure
it out. Even if it is a particular condition for one type of mobos. Maybe
they can’t do anything, but at least they will be aware of the condition.
> Thanks for giving me another direction follow.
> It’s not my ideal, but it will work for me.
–
Cheers / Saludos,
Carlos E. R.
(from 11.2 x86_64 “Emerald” at Telcontar)