suspend/resume success and failure report and questions

suspend/resume success and failure report and questions

[Norbert Preining]

Hi friends!

I want to report on success and failure of suspend2disk and suspend2ram.

First, here the specs of my laptop/software:
- kernel 2.6.7-mm5
- debian/sid
- acer travelmate 654LCi
- graphic: radeon mobility m7 (7500)

What is working:

- Suspend2Disk via pmdisk (echo -n disk > /sys/power/state)
	Nice thing is that it even works with uhci and ehci compiled
	into the kernel AND X running with agp and dri AND radeon
	framebuffer. So this is really nice and suprising for me.

	Interestingly, I have to stop mysql server, otherwise it wouldn't
	suspend (cannot stop tasks)

	But generally, big thanks to the pmdisk developer(s), it is
	working great! Even multiple suspend/resume cycles etc.
	Only thing I am missing is some way of post-resume script.

- partial Suspend2Ram via mem > /sys/power/state
	Here all the usb stuff has to be compile modular and has to be
	unloaded, no radeon framebuffer and no X is allowed.
	Then suspend to ram works, resume too, but the video card is 
	not initialized again. Black screen. But I can shut down.

What is not working:
- S2R
	framebuffer
	X
	usb
	restoring of video output
- general
	clock is completely wrong - where is a post-resume script (see below)

What I don't know/haven't tested till now:
- wlan drivers (orinoco)
- network drivers (b44)
- acerhk working

So now here are my questions:
- Is it possible to get S2R to the level of S2D without problems?
- is there a way to get things done BEFORE the suspend (this I managed via 
  the acpi script), but also AFTER the resume.
  I need this for fixing the clock and starting mysql and some more stuff
  probably

Best wishes

Norbert

-------------------------------------------------------------------------------
Norbert Preining <preining AT logic DOT at>         Technische Universität Wien
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Re: suspend/resume success and failure report and questions

[Alexander Gran]

Am Samstag, 10. Juli 2004 10:30 schrieben Sie:
> - general
> 	clock is completely wrong - where is a post-resume script (see below)

Same here. The kernelclock is restored after resuming, but not set to the rtc.

> - Is it possible to get S2R to the level of S2D without problems?

Not yet, I suppose. But "we" are working in this area.

> - is there a way to get things done BEFORE the suspend (this I managed via
>   the acpi script), but also AFTER the resume.

Don't know. With acpid or apmd this could work.

regards
Alex

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Re: suspend/resume success and failure report and questions

[Pavel Machek]

Hi!

> 	But generally, big thanks to the pmdisk developer(s), it is
> 	working great! Even multiple suspend/resume cycles etc.
> 	Only thing I am missing is some way of post-resume script.

echo 4 > /proc/acpi/sleep; post_resume_script

> - partial Suspend2Ram via mem > /sys/power/state
> 	Here all the usb stuff has to be compile modular and has to be
> 	unloaded, no radeon framebuffer and no X is allowed.
> 	Then suspend to ram works, resume too, but the video card is 
> 	not initialized again. Black screen. But I can shut down.
>

See video.txt. Perhaps usb & radeon need some more
suspend/resume support?
 
> - network drivers (b44)

Should work ok.

> - is there a way to get things done BEFORE the suspend (this I managed via 
>   the acpi script), but also AFTER the resume.
>   I need this for fixing the clock and starting mysql and some more stuff

Yes.
				Pavel
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Re: suspend/resume success and failure report and questions

[Norbert Preining]

Hi Pavel!

On Die, 13 Jul 2004, Pavel Machek wrote:
> > 	Only thing I am missing is some way of post-resume script.
> 
> echo 4 > /proc/acpi/sleep; post_resume_script

Thanks for this, I realized it after playing around a bit.

> > - partial Suspend2Ram via mem > /sys/power/state
> 
> See video.txt. Perhaps usb & radeon need some more
> suspend/resume support?

Ok, I have to get this patched video driver to work, means recompiling
debian/sid package with this fix.

For usb, no idea, but I can live with /etc/init.d/hotplug stop ; sleep ;
... start.

> > - network drivers (b44)
> 
> Should work ok.

They do, meanwhile I have tested them.

And orinoco from cvs also works.

Thanks a lot and best wishes

Norbert

-------------------------------------------------------------------------------
Norbert Preining <preining AT logic DOT at>         Technische Universität Wien
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-------------------------------------------------------------------------------
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