my laptop won't wake up
 

I just installed Mandrake 10.1 on my IBM X40 Thinkpad. I got it to sleep, but how do I wake it up? I tried many combinations of keys. Any thoughts?

Have you tried tapping the power button?

yep...no luck.

When you hit the power button do you get ANY activity as if the machine is starting?

If NOT this is not a Linux issue...

However you CAN reset the unit to get it to operate again.

Remove the battery and leave it out for at least 30-90 seconds and make sure that the machine is disconnected from AC power.

Then re-install and turn it on again. It should then come up.

Yes, when I hit the power button the hard drive clicks on, but nothing else happens. Could it be that ACPI is not working properly because I didn't install the kernel source code?

The question is if this is indeed a kernel issue.

e.g. is the kernel still in memory and trying to unsuccessfully wake up?

Pull the battery as I indicated.

If Linux subsequently wakes up then you'll know that this is indeed an ACPI issue.

However this has nothing to do with "installing the kernel source code" but rather the /etc/lilo.conf boot paramters.

I.E.

acpi=ht (which is often the default) DISABLES ACPI support which you do not want.

OK. Did that. Changed "acpi=ht" to "acpi=on" in my lilo.conf file. Rebooted. Suspend to RAM now wakes up when tapping the power button. Hurray!

Great!