Resume from suspension not working with >3.2.12 kernels

[motosauro]

Hi all
Suspension is not working anymore on my laptop, it has always worked just fine and still does if I use a 3.2.12 kernel (last working one)
Basically the issue is that system suspends just fine with both kernels (everything stops and status led becomes glowing and orange), but when I try to resume the >3.2 kernels the machine boots as if it had been shut down completely before

I'm not filing a bug because I saw two pm related options appearing in the new kernels, but from their description they don't seem to be the cause for this problem

I also tried debugging with PM_TRACE_RTC but without results (dmesg shows nothing)

My .config is like this (only pm relevant part shown)
When I upgrade a kernel I zcat /proc/config.gz > /usr/src/newkernel/.config, then I do a #yes "" | make oldconfig so all other set values are the same

[Hu]

These problems are often easier to identify if you report them promptly after they appear, rather than waiting through several major kernel versions.

Do I understand correctly that you have tried both enabling and disabling each of the new options, and the effect is the same regardless?

[motosauro]

I normally upgrade the kernel as soon as it's stable, but this time I've been very busy and since this is my work laptop I tend to be more conservative on upgrades

I took the time to recompile the 3.5.7 kernel with
CONFIG_PM_WAKELOCKS=y
and it seems to have fixed it

My bad for not trying this before, but actually it wouldn't have hurt having some documentation to consult
Maybe there was some and I simply didn't find it
I'm growing too old to randomly try all the new options, expecially on my work equipment

I think I'll have to update the Gentoo-Wiki page.

Could you (or anybody) point me to some relevant changelog to understand if this is really the solution for me and if this could affect also other people?

Thx
_________________
Per aspera ad astra

[Hu]

Wakelocks are most likely not the correct solution. That is an Android-related feature to prevent untimely suspension.

[motosauro]