I have the same problem I think the machine is an Asus A8V clone (AJP) My CPU sits at 100% when on AC - but scales correctly when on battery. I've tried the commands given above and am using acpi_cpufreq.
I've attached my lspci output and uname as given above. ** Attachment added: "lspci -vvn, lspci -vv and uname -a" http://librarian.launchpad.net/7154116/system_info.txt -- [feisty] CPU scaling ondemand stay at 100% https://bugs.launchpad.net/bugs/99059 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs