Suspend 2 Ram Guide (Like MS Sleep Feature in Windows)

Question

Suspend 2 Ram Guide
Requirements:
1.Kernel 2.6.* with Sleep States
Power Management Opitions -> Acpi -> Sleep States
2.Vbetool
I think any 2.6.* kernel will work I am not sure
Setup:
1. Make sure you have a kernel with Sleep States Compiled in. Any arch stock kernel should do.
2. pacman -S vbetool
Making the Script:
You now need to make a script that will unload your modules, save the video card state, restore modules on resume, etc....
Here is my script hopefully it pretty straight foward:
#!/bin/sh
# Initiates a suspend-to-ram!
# Suspend
echo "Going to sleep at `date`"
##Let's go to Terminal 1 (Ctrl+Alt+1)
echo "* chvt 1"
/usr/bin/chvt 1
##Close Programs
##I have session saver for firefox
if [ `pidof firefox-bin` ] ;
then killall firefox-bin ;
else echo "Firefox-bin is not running";
fi
##The Sound Module won't unload when applications are using the sound
killall xmms
if test -e /var/run/daemons/mpd.pid ;
then /etc/rc.d/mpd stop;
else echo "Mpd is not Running" ;
fi
## Stopping the Network
if test -e /var/run/daemons/network ;
then /etc/rc.d/network stop;
else echo "Network is not Running";
fi
##Save Alsa Mixer Settings and give all the programs 2 secs to finish shutting down.
alsactl store
sleep 2
## Unload Modules [snd_emu10k1 = sound 8139too = network]
rmmod snd_emu10k1
rmmod 8139too
#Save Video State
echo "* save vbestate"
/usr/sbin/vbetool vbestate save > /etc/acpi/vbestate
echo "* writing to /sys"
echo -n "mem" > /sys/power/state
echo ""
# Resume
echo "Back from sleep at `date`"
##Restore the state of the Video
echo "* restore vbestate"
/bin/cat /etc/acpi/vbestate | /usr/sbin/vbetool vbestate restore
##Lets restore the clock
echo "* restore clock"
/sbin/hwclock --hctosys
##Lets get back to Xorg (Ctrl+Alt+1)
echo "* chvt 7"
/usr/bin/chvt 7
##Load Modules
modprobe snd_emu10k1
modprobe 8139too
##Give the modules some time to learn
sleep 5
##Load Programs
/etc/rc.d/network start
alsactl restore
/etc/rc.d/mpd start
echo "* done"
echo ""
# Done
exit 0
You must edit this script if you want to use it!!!
The chance that you have the same modules and setup as me are extremely slim.
Note: Firefox uses the sound module and prevents unloading of it.

Answer 1

littleshoulders,
roam,
I have read all 221 messages in the "sticky" thread about DU, and followed Mac Fool's advice (and that in Apple's Article).
I have iTunes 7.0.2, and QuickTime 7.1.5.
This time, the "Repairing" ran all the way without a problem. It gave a couple of errors (one about /Library and one about /ColorSync - if I remember correctly). So, it is indeed something with iTunes.
I had 96 pkg's in /Receipts. I put all of them in the trash, except iTunesX.pkg. I do not have iTunesPhoneDriver.pkg. Do I delete all those pkg's, or should I put them back, "just in case"? I have no idea "in case what", though
Your thread does not state any maintenance or
troubleshooting that you have done already (other
than the aforementioned Repair Disk from your install
disk) so you may also wish to post back and let users
know if you have tried any others as of yet such as:
Are the cron maintenance routines run on the
machine?
I had no idea how to fix the weird things that I have been seeing in the past weeks/months. I also do not have any other maintenance applications installed/running. I guess I should, shouldn't I?...
About those cron routines. I remember reading, long ago, that they will not run when a Mac is in "sleep mode".
Is that true?
So, I can/should not put my Mac in sleep mode at night? But is it not a little "crazy" to have your Mac running the whole night?
I will have to read up on those cron tasks again.
Someone called Gulliver wrote a message about maintenance: guess I will start there.
Are those other maintenance app's advisable?
Perhaps a "OS X Maintenance for dummies"-book would be handy.
and having a too full HD can create alot of problems
so if you can post back how much free space you have
left might help.
I checked it:
Macintosh HD
Created : August 31, 2004
Structure: Mac OS Extended (Journaled)
Capacity: 74.4 GB
Available: 47.08 GB
Used: 27.31 GB free
So, that makes 37% used. That seems to be not that very much to cause performance issues?