I've tried various patches over the last week or so and at first didn't have much success with any combination but I'm now running 2.6.20-rc5 with the patches from http://www.sisk.pl/kernel/patches/2.6.20-rc5/ and I have working fans both before and after resume. For context, see comments 70-74 of http://bugzilla.kernel.org/show_bug.cgi?id=7122 .
-- Regression: Fan does not come on due to ACPI problems https://launchpad.net/bugs/75398 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs