On Fri, Jan 14, 2005 at 02:56:00PM +0200, Teemu Nikkilä wrote:
I don't know if T22 is much different from my T21, but for me suspend to RAM works fine with both APM and ACPI. I have the ThinkPad related
Lucky you :-)
software packages installed, but I guess they are not really needed for this, or are they?
no, they should not make a difference.
The difference is that when running with APM, it will not suspend when on AC.
This is a Thinkpad special feature. It will suspend on AC, but only if you eject your PCMCIA cards first.
With ACPI on the other hand the only way to make it suspend is to echo 4 > /proc/acpi/sleep.
This is suspend to disk. But you should do this via powersaved (powersave -U) since...
And you have to unload the sound module before suspending. I also eject PC Cards before going to sleep. A simple script can handle the process nicely and also load modules and insert cards on resume.
...powersaved will handle all this for you. Just configure which modules to unload and which services to stop before suspend and it should work all fine. -- Stefan Seyfried