Re: Suspend to RAM issus on a Dell 700m

[Benedek Frank <linux-mmCHBaZtUya2oZ/6fjIToQ@public.gmane.org>]

On Sun, 26 Jun 2005 17:08:37 -0400
Petros Kolyvas <pkolyvas-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Your script works just as well (if not better), but that persistent
> interactive shell using 99% of my available CPU continues to crop up.
> I'm not sure where to go from here.
> 
> Thanks for the reply though!
> 
> Petros
> 
And you cannot kill that thing? Like "ps ax" will give you the ID
number, and then "kill -9 xxxx" (xxxx is ID number) ?

If yes, you may put that in the waking part of the script, and it will
kill the bastard. If that isnt the case, I wouldnt know what to do. I
have 2.6.9 kernel, and that might be the case. 2.6.9 works like a charm.
Also try to kill as many running apps as you can prior to suspend, just
to test, and then resume, and see if it works. ALso try to suspend from
console (no X session, session manager running). If it works, you can
enable processes one by one, and see which one causes the system to
freak, and eliminate the process. 

I see you use cpuspeed. How about stopping that before suspend? Just a
blind guess though. This is what I would try if it was mine. Also just a
sidenote, powernowd is a superb CPU speed scaling (on demand) app. You
may check that out. All info should be on my site.

If you have anything you may add to the site, let me know, and I will
post it there.

Ben
> 
> Benedek Frank wrote:
> > On Sun, 26 Jun 2005 12:36:48 -0400
> > Petros Kolyvas <pkolyvas-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > 
> > 
> >>Hi Folks,
> >>
> >>I finally got the "mem" state to function on my laptop (a state
> >which >I  use extensively in that "other" OS when I'm working.)
> >>
> >>A few issues though... my cpu, upon return, powers up to full-speed 
> >>making it impossible to truly conserve power, sort of defeating the 
> >>whole process.
> >>
> >>It seems a rogue process (one which I can't kill)... listed only as
> >>'sh  -i" is using ~99% of the available CPU cycles. I have no idea
> >>where it's  coming from.
> >>
> >>Additionally the system gets less and less responsive with each
> >return >
> >>from the "mem" state. Probably due to many of these rogue processes 
> >>building up and bogging the system down.
> >>
> >>Below is the script I used, which I found online and modified (very 
> >>little) as needed. Any insight would be greatly appreciated. Oh, I'm
> >
> >>using FC4 w/ 2.6.12 (unpatched.)
> >>
> >>Thanks,
> >>Pk
> > 
> > 
> > Hi
> > 
> > I have mine working perfectly, you may check my site, and compare a
> > few things.
> > 
> > http://www.celifornia.com/documents/dell700m.html
> > 
> > Hope it helps
> > 
> > Benedek
> > 
> >>///
> >>
> >>script to drive the system to S3
> >># suspend-to-ram
> >>
> >>if [-e /suspending]; then
> >>	echo "already in the process of suspending. Please be patient."
> >>else
> >>	/bin/touch /suspending
> >>
> >>	# Step 1: preparing sleep
> >>	/usr/bin/killall -s SIGUSR1 cpuspeed
> >>	/usr/bin/chvt 1 # necessary to make DRI work
> >>	/sbin/service anacron stop
> >>	# USB doesn't suspend without unloading first
> >>	/sbin/rmmod ehci_hcd
> >>	/sbin/rmmod uhci_hcd
> >>	#save the system time
> >>	/sbin/hwclock --adjust
> >>	#/sbin/rmmod wacom # only necessary of you have wacom stylus
> >>	/sbin/rmmod -as
> >>	/bin/sync
> >>
> >>	# Step 2: send sleep command via ACPI
> >>	echo mem > /sys/power/state
> >>
> >>	# Step 3: wake-up and reload
> >>	# restart the BIOS code for the video card
> >>	/usr/bin/video_post
> >>	# restore clock
> >>	/sbin/hwclock --hctosys
> >>	# reload USB modules
> >>	/sbin/modprobe ehci_hcd
> >>	/sbin/modprobe uhci_hcd
> >>	# initialise X
> >>	xinit /bin/false -- :1
> >>	/usr/bin/chvt 7
> >>	# restore resvices
> >>	/sbin/service anacron start
> >>	/sbin/service cpuspeed restart
> >>
> >>	rm /suspending
> >>fi
> >>
> >>
> >>
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