hi al
i am usnig slack10.1 linuce gnome 2.10.1 (still kde is there)

how can i hibernate my machine, or letting it to stand by
as in winblows(quoted)xp , % but my computer didnt taste winblows

if you feel like writing up some scripts/config files, look for information about /proc/acpi/sleep

I think this is a realy good question...

I have a HP pavilion ze5400 that look do not have acpi support (realy strange for a notebook ) and I did like to make my computer sleep, or hibernate, I know about some thing that I compiled in kernel, about saving the current linux stats in a swap partition and using a special option with shutdown command...

And what about my battery status thats have a very big delay to showing the current energy status?? Like, I unplug now my notebook, the monitor shows that Im running on AC power, but it take a very long time to change from 100%... like 20, 30 minutes sometimes, them goes to the right state... but its not to helpfull the battery monitor doing this, can anyone give me some clue?

before using gnome 2.10 i was using kde and i used to hibernate with the klaptop applet under kde. i had to setup helper applications to allow me to hibernate or standby. you also have to edit your lilo.conf file.
add this to your lilo.conf:

image = /boot/your-linux-image
root = /dev/hda6
label = Resume
append="resume=/dev/your-swap-partition"
read-only

after you hibernate and restart your computer just select that kernel entry instead of the normal one you usually use. and that should get you back on your desktop.
as i said earlier on i used the kde klaptop applet to set this up. but once you've succefully hibernated using kde, you can switch back to gnome and i've setup a script that calls the klaptop acpi function from the gnome battery applet.

this is the script
hope this helps!

rkrishna, if you are looking to suspend to ram (i.e., shut the lid and open it and it comes back instantly) then you can do this with acpi if your laptop supports it or, I believe, apm (the older power management). I would look at linux-laptop.net or tuxmobil.org to see if you can find info on your specific laptop and you might find some scripts that you can use.

if you are looking to suspend to disk so you can shut down and hibernate and then boot back up to your restored desktop, then you'll need to patch your kernel per this:

http://www.suspend2.net/

hi my machine is not a laptop

i only just want to know,as usully done in windowsXp,
hibernating the machine for a long time so tht i dont need to switch off the machine as discussed by maginotjr

these are the options what we seewhen we go for shutdown a xp machine....
this is a good option

will u plz elaborate Mig21 about /proc/acpi/sleep

going through the link provided by Jackson1995

one who used xp can easly understand the problem

sorry, like most everyone else i have never done it on a desktop. what you do is something like:
and that puts the system in acpi sleep level 1

suspend to ram is level3 and 4 is hibernate i think

when i run i am getting
bash-3.00$ echo 1 > /proc/acpi/sleep
bash: /proc/acpi/sleep: No such file or directory
bash-3.00$ su
Password:
bash-3.00# echo 1 > /proc/acpi/sleep
bash: /proc/acpi/sleep: No such file or directory
bash-3.00#

I think this is a general question, so tht we can include this option
that saves a lot power ie why

oh, you're probably running the 2.4 kernel?

in slackware 2.4 comes with apm, no acpi

you have to use the 2.6 kernel (off the second disk) then you'll get acpi

i just forgot to mention that and later i thought about it

is there any way for hybernating machine for other distro of linux