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-README.SLACKWARE
-20130512 - rworkman@slackware.com
-
-===============================================================================
-PLEASE READ THIS ENTIRE FILE BEFORE REPORTING PROBLEMS OR ASKING FOR HELP!
-===============================================================================
-
-One of these routines should tell you whether any of the operations
-are supported by your current kernel/userspace at all:
-
- for i in hibernate suspend suspend-hybrid ; do
- pm-is-supported --$i \
- && echo "$i is supported" \
- || echo "$i is not supported" ;
- done
-
- *OR*
-
- cat /sys/power/state
-
-Assuming they are supported, running "pm-suspend" as root should do a suspend
-to ram, and "pm-hibernate" should suspend to disk. Note that you must have a
-swap partition (or file, but partition is easier) which is large enough
-(2x ram is good here) and the relevant initrd lines and such for this to work.
-If you're not familiar with all of that, don't test pm-hibernate.
-I don't have hardware which supports suspend-hybrid, so I have no idea if/how
-it works at all.
-
-Here's the short version of using suspend to disk:
-
-Stanza in /etc/lilo.conf should look something like this:
- image = /boot/vmlinuz-generic-smp-3.8.13-smp
- initrd = /boot/initrd.gz
- append = "resume=/dev/sda2"
- root = /dev/sda1
- label = genericsmp.s
- read-only
-
-/etc/mkinitrd.conf should look something like this:
- MODULE_LIST="ext4"
- ROOTDEV="/dev/sda1"
- ROOTFS="ext4"
- RESUMEDEV="/dev/sda2"
-
-mkinitrd command invocation would be this:
- mkinitrd -c -k 3.8.13-smp -F
-
-All of the above assumes at least a cursory understanding of what those
-commands and parameters do. If it's not clear, don't attempt it on a
-system that you can't easily reinstall without concern.
-
-==============================================================================
-
-Once you confirm that a suspend and resume cycle works as expected, you might
-automate the process with some acpi magic, but a better option is to use the
-power manager daemon included with your choice of desktop environment (both
-kde and xfce have one).
-
-==============================================================================
-
-/* TODO: these links are now dead. That's mostly okay, because the vast
- majority of the hardware out there these days doesn't require any quirks
- at all any more. Hopefully you won't be in the minority :-)
- Addendum: it's now been about three years since the above text was
- written, and I've had zero reports of hardware requiring additional
- quirks. Just FYI. :-)
-*/
-
-If it doesn't work by default for you, consider having a look at
- http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-index.html
-for some debugging hints. Pay particular attention to this page:
- http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-try.html
-
-If you are able to get your machine to suspend/resume correctly by passing
-additional quirks on the command line, then I would like to know about it so
-that upstream hal-info can get the correct information to use. Please email
-the make/model and other relevant information about your machine along with
-the full output of "lshal" and "lspci" attached, and what extra quirks you
-needed to add for successful suspend/resume to rworkman@slackware.com
-
-==============================================================================
-
-If you need the system to do certain operations before going to sleep and
-then undo them (or perhaps do something new) when waking back up, pm-utils
-supports something called "hooks." The hooks installed by packages (not only
-pm-utils itself) should be in /usr/lib(64)/pm-utils/sleep.d/, while any hooks
-installed by the local system administrator (e.g. things that are only an
-issue on that one machine) should be in /etc/pm/sleep.d/.
-
-Looking at some of the existing hooks should give you a decent idea of their
-capabilities; as a head start, the functions used in the hooks are declared
-in /usr/lib(64)/pm-utils/functions, which is inherited elsewhere by
-/usr/lib(64)/pm-utils/pm-functions. Note that an error exit code on any hook
-will cause the sleep operation to fail, so if you don't care whether your
-hook executes successfully, be sure to return an exit code of 0 (success) if
-you don't want the suspend operation to fail. Some other exit codes are
-also available; none of these will cause the suspend to fail:
- $NA (not applicable), $NX (hook not executable), and $DX (hook disabled)
-
-==============================================================================
-
-The default powersave hooks are in /usr/lib(64)/pm-utils/power.d/ -- if you
-need to override any parameters set in those, you can do so with same-named
-files in /etc/pm/power.d/ As an example, if you wanted to change the hdparm
-setting for your hard drive's power management setting, you would copy the
-entire file at /usr/lib(64)/pm-utils/power.d/harddrive to /etc/pm/power.d/
-and edit the copy to reflect your needs, e.g.:
-
- DRIVE_POWER_MGMT_BAT=128 # edit value as desired
- DRIVE_POWER_MGMT_AC=128 # edit value as desired
-
-Also note that any files in the /etc/pm/ hierarchy must be executable (use
-chmod +x) in order to be used by pm-utils; otherwise, they will be ignored.
-
-==============================================================================
-
-KNOWN ISSUES
-
-**** If you encounter either of these, mail rworkman@slackware.com ****
-
-If your alsa drivers don't correctly save and restore state across a sleep /
-resume cycle (due to a buggy driver), then you will need to add the drivers
-to a custom file named /etc/pm/config.d/defaults (create the file if it does
-not exist already) in a variable named "SUSPEND_MODULES" - see the file at
-/usr/lib(64)/pm-utils/defaults for proper format.
-
-The /usr/lib(64)/pm-utils/sleep.d/90clock does not run by default. It added
-over a second to suspend, and the vast majority of hardware does not need it
-to keep the clocks in sync. If you need this hook, you can set the
-NEED_CLOCK_SYNC environment variable in a custom /etc/pm/config.d/defaults
-file.
-
-==============================================================================
-