I issued the command "echo 3 > /proc/acpi/sleep" and the computer went to sleep. Then it wouldn't wake back up by pressing a key or moving the mouse, so I tried the power button and that wouldn't wake it either. I had to hold down the power button for 5 secs to turn it off, and now when I turn it on it does nothing -- the hard drive light comes on and stays lit, but it seems to just be sitting idle -- it won't boot from a CD either. How can I get my system to boot again?

Hi,

I've had this problem when using ICEWM, my comp would go to sleep and wouldnt get backup. Same problem as as you, the monitor as well as the disks indicate that everything is ok [ie. press Ctrl+Alt+F1 after it boots up, and it makes the sound of switching to the terminal mode ], but i cant see any thing on my monitor.

And the wierdest of all things was it wouldn't show me anything on my monitor
even when i booted into windows..

I have no explanation as to what is happening but I did the following, I know it's really funny but this is what I did..

Plugged off my comp and waited , and inserted the Knoppix cd [coz I didnt want it to screw up my system by rebooting unsafely] , kept repeating it and I also reset my monitor back to factory settings, did it all blindly[nothing on the monitor...]

After some time it came back, I logged back in and passed apm=off, acpi=off to my kernel in the /boot/grub/grub.conf and decided not to use "god damn "powersaving at all...

Now everything is working perfectly...

"THIS IS ONE OF THE MOST FRUSTRATING AND WIERDEST PROBLEM I'VE FACED EVER"

If any one can explain why this is happening.. Please enlighten me...

PHEW! I found out that you can reset the CMOS by taking out the battery on the mobo for 20 secs, and after I did that it worked fine again. ACPI must have messed up the CMOS. I still can't get ACPI to do anything useful, though. APM is great -- you go "apm -s" and the thing suspends. Fedora Core 3 doesn't come with that though :-\