Explanation of sleep levels for swsusp

From: Pavel Machek (pavel@ucw.cz)
Date: Mon Feb 10 2003 - 12:11:24 EST


Hi!

This might be usefull to people, please apply.
                                                                Pavel

--- clean/Documentation/swsusp.txt 2002-10-08 21:25:16.000000000 +0200
+++ linux/Documentation/swsusp.txt 2002-12-15 21:54:46.000000000 +0100
@@ -156,6 +156,20 @@
 - do IDE cdroms need some kind of support?
 - IDE CD-RW -- how to deal with that?
 
+Sleep states summary (thanx, Ducrot)
+====================================
+
+In a really perfect world:
+echo 1 > /proc/acpi/sleep # for standby
+echo 2 > /proc/acpi/sleep # for suspend to ram
+echo 3 > /proc/acpi/sleep # for suspend to ram, but with more power conservative
+echo 4 > /proc/acpi/sleep # for suspend to disk
+echo 5 > /proc/acpi/sleep # for shutdown unfriendly the system
+
+and perhaps
+echo 4b > /proc/acpi/sleep # for suspend to disk via s4bios
+
+
 FAQ:
 
 Q: well, suspending a server is IMHO a really stupid thing,

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