From: "Emil Pedersen" <[EMAIL PROTECTED]> > Matìj Hausenblas wrote: > > > > I have some little trouble finding documentation on putting an purely ACPI (no > > APM support) laptop (Acer TravelMate 435LC) to sleep. The apm -s command > > doesn't work since apm isn't enabled. > > I would like to ask if there's an equivalent to that command but for acpi. > > I've heard something about pmtools, swsusp and acpi SX states, but I didn't > > find more precise links. > > I've tried swsusp (se other reply for link) on an acer TM632, but have > not been able to get it working when X is started (using nvidia > drivers). > In console mode (including framebuffer) it works fine, haven't tried X > against framebuffer.
First do: dmesg | grep ACPI You should get "ACPI: Subsystem revision yyyymmdd" and "ACPI: System [ACPI] ( supports S0 ... S5)" If you don't get those, you don't have the ACPU patches installed. The subsystem revision date, above, should be at least in 2003 - patches available from Sourceforge. In the second message, if you don't see S1 and/or S4, you can't do any sleep states in kernel 2.4 anyway, and if you don't see S3 you won't be able to do suspend-to-ram (which is only available in 2.5 kernels). These settings are determined by the DSDT (an ACPI table in the BIOS). I've seen many machines that don't have an S1 state. If you have S1, you should be able to do 'sleep' (equiv of apm -s). If S4 is supported you can do suspend-to-disk (with the swsusp patches - I'm not sure where those are). To initiate a sleep state you do "echo 1 >/proc/acpi/sleep" for S1, echo the corresponding number for other levels. I've never seen a machine with S2 and you do NOT want to use S5 (immediate power off!).
