I'm no kernel hacker, but that does look very interesting... in fact, the lines before and after look related as well:
[ 0.574636] ACPI Error (psloop-0136): Found unknown opcode 17 at AML address ffffc200008b27c3 offset 0, ignoring [20070126] [ 0.574645] ACPI Error (psargs-0355): [DBþÿ] Namespace lookup failure, AE_NOT_FOUND [ 0.574649] ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._PCT] (Node ffff81007c3efb60), AE_NOT_FOUND [ 0.574685] ACPI Exception (processor_perflib-0170): AE_NOT_FOUND, Evaluating _PCT [20070126] [ 0.574690] CPU1 is up It seems that there's an issue with acpi just before CPU1 is brought up... But considering the topic of that bug is the scaling monitor, not the actual scaling, I really didn't consider this a dupe, but the circumstances seem to be the same. I'll post this over there too. -- Intel Core 2 Duo - Resume from suspend, CPU Frequency Scaling is gone on CPU1 https://bugs.launchpad.net/bugs/183033 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs