On Tue, 2005-09-20 at 12:27 +0100, Steve Hill wrote: > /proc/acpi/sleep seems to be the old > 2.4 kernel interface, whereas /sys/power/state is the 2.6 kernel > interface.
I tried doing the "echo -n mem > /sys/power/state" on my laptop. It does go to sleep; the blinking lights show it is in a suspend-to-RAM state. But when I try to wake it up, it hangs. This is pretty much the same as "echo 3 > /proc/acpi/sleep"; I have to power it off and reboot to get it back. It looks like maybe this could be made to work; I have FC4 with a 2.6 kernel. Maybe that hibernate script is what I need; I'll try it out. Thanks to everyone for the pointers on this. Lack of suspend has been by far the largest pain in the butt to running Linux on a laptop; it's the one thing that Windows XP does that I wish Linux could do. This is wandering a bit off topic for Myth, getting suspend to work on a laptop, but more to the point is that if I can make it work on my laptop, perhaps I could make it work on my slave backend/frontend which would be directly useful to my Myth setup. > Whilest suspending using ACPI seems to just power my machine > off completely, if I disable ACPI and use APM instead it sends the machine > to sleep but won't wake up again. My machine only supports ACPI. Most new hardware will be ACPI-only. I think the IBM Thinkpads may be one of the few exceptions left on the market. --Greg
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