Bug#517804: base: CPU scaling for the 2nd core stops working after suspend to RAM
Hi,
I am not the OP but I have the same problem, in my case affecting a Dell
Latitude D830 running linux-image-2.6.26-2-686 (lenny). In fact for me
the first CPU seemed to be stuck on lowest CPU frequency as well after
I resumed.
I wasn't able to test with kernel 2.6.32 because, though it boots and
suspends to RAM, it will not resume for me. I hazard a guess that some
userspace tools might need upgrading from my Lenny versions.
However I can confirm that the problem was already fixed in 2.6.30, as
thanks to your hints I have now tested using the backports.org kernel
2.6.30-bpo.2-686, and suspend-to-RAM now no longer causes the second
CPU to lose scaling.
I think this is the applicable kernel bug:
http://bugzilla.kernel.org/show_bug.cgi?id=10734
I hope the confirmation is useful.
Nick
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