As somebody who used to be affected by this bug, I can say with a reasonable level of certainty, that your BIOS (in particular the ACPI code) is buggy. The speedstep-centrino frequency table hack was marked as deprecated in an earlier kernel (sometime around 2.6.18), and newer kernels use ACPI for setting frequency/voltage. This is not Ubuntu's fault. If you want to complain to someone, look further upstream to the kernel developers - but good luck, because I doubt they'll listen. The real bug lies with your BIOS vendor, and flaky ACPI code.
If you want to mimic the behaviour of Feisty, look to the linux-phc project at https://www.dedigentoo.org/trac/linux-phc/ This is essentially the patch that the Ubuntu kernel team added, to ensure frequency scaling would work. In future kernels, speedstep- centrino will be removed completely, so you can kinda see why this patch has not been applied to Gutsy. -- [GUTSY] cpu freq scaling not working anymore https://bugs.launchpad.net/bugs/132271 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
