laptop doesn't turn off

[birkopf]

Every time when I hit "shut-down" button, my laptop is turning off up to the moment when screen is black, but is still working. If I will hit Enter or Escape it will shut down shortly.

Recently I noticed that on the screen:

 Halt unable to iterate IDE devices. No such file or directory

Installation is clean. I didn't changed any boot options.

[josefko]

Re: laptop doesn't turn off

I think that the message you quoted has no connection with your turning off problem. I have the same message on two computers and have no problems with switching off. Maybe most of us have the same.

[jglen490]

Re: laptop doesn't turn off

I used to get that error, too. Josefko is correct that the error message has nothing to do with shutting down. I fixed both by modifying the /etc/init.d/halt script, interesting but not important, and by entering

apm power_off=1

to the /etc/modules file. Shuts down fine.

The root cause was a boot message indicating that the BIOS age is too old for ACPI to work in a stable mode. Injecting an apm command into the process overcomes the ACPI power control problem. At least it worked for me, YMMV.

[birkopf]

Re: laptop doesn't turn off

That's interesting, but I don't have line with this string in init.d/halt script. Shall I just enter it there? If yes than where exactly, because there is quite a long script written there ;-)

In etc/modules I practically don't have anything. Just two modules that shouldn't be loaded with system.