Trouble with suspend/resume on 2.6.39-x

Amity88

I did a fresh Gentoo install on an old p4 that I use for testing. The problem is that I can't resume from suspend, it works once in a blue moon but most of the time it permanantly stays in suspend and I have to hard reset it. The suspend seems to work correctly, the screen goes blank & I can hear the hard drive spin down.

I've tried the following to suspend.

mp342 · Apprentice Joined: 03 Aug 2010 Posts: 165 Location: France

Did you set /proc/acpi/wakeup to permit a wakeup with your keyboard ? (or anything you want to use)

Did you tried with 'shutdown' mode instead of 'platform' mode ?

Amity88 · for 2.6.39

I didn't explicitly set it, the default one is identical for both kernels but works only with 2.6.32. Here's the output for cat /proc/acpi/wakeup

for 2.6.32

mp342 · Apprentice Joined: 03 Aug 2010 Posts: 165 Location: France

Hu · Administrator Joined: 06 Mar 2007 Posts: 23097

Does it work in v2.6.38.8? Can the affected system use hibernation? Suspend-to-RAM, which you requested, requires more BIOS support than hibernation.

Amity88 · pm-suspend in 2.6.39-x

@mp342,
According to the logs, with 3.6.32 it does the whole thing (suspend and resume). With the 3.6.39, the log seems to show that only the suspend part is completed. Here are the two logs.

pm-suspend.log in 2.6.32-x

toralf · Posted: Tue Sep 27, 2011 8:23 am Post subject:

If you boot the lernel with "no_console_suspend" did you see anything at the console after resume ?

mp342 · Apprentice Joined: 03 Aug 2010 Posts: 165 Location: France

mp342 · Apprentice Joined: 03 Aug 2010 Posts: 165 Location: France

Amity88 · Posted: Tue Sep 27, 2011 10:48 am Post subject:

Update:

The S3 suspend does work with 2.6.32-x when I used pm-suspend instead. Both suspend and hibernate seems to work correctly from windows as well. What I don't understand is why the newer 2.6.39 cause problems

@mp342,
I just did the hibernate as a test, I don't really need it. But it sucks that I have to use an older kernel to get suspend to work properly.

@torlaf,
I'll attempt that with the 2.6.39.... but it seems that it doesn't resume at all :/
_________________

mp342 · Apprentice Joined: 03 Aug 2010 Posts: 165 Location: France

Sometime, there are some regressions in new kernels. Wait for the next or try one between 2.6.32 and 2.6.39.

Recently, I had a kernel witch crash every time I plug my blackberry. The problem disappears with the next version.

Hu · Administrator Joined: 06 Mar 2007 Posts: 23097

Amity88 · suspend does work in 2.6.38-r7

I tried with gentoo kernel 2.6.38-r7. The kernel hangs after about 1.8 seconds into boot with a new error:

depontius · Advocate Joined: 05 May 2004 Posts: 3526

This might be the same problem I had, moving a dedicated mythfrontend beyond 2.6.32. Depending on how you are meaning to wake the system, it may not be sufficient to merely do something in /proc/acpi/wakeup. If you're trying to wake with a USB device, you also have to walk somewhere in the USB device tree tell that device to be ready to wake the system. If you don't do that, it goes to sleep along with everything else, instead of staying alert for the wake event.

I'm away from the system where I fixed this, so I can't tell you now exactly what I did. If nobody has answered it by later tonight I'll take a look.

EDIT: