This issue was not fixed so far. My CPU is a AMD Phenom II X6 1100T Black Edition. Dmesg shows two inconsistent information:
# dmesg | grep -i "MHz processor" [ 0.000000] Detected 3990.261 MHz processor. # dmesg | grep -i powernow-k8 [ 2.301614] powernow-k8: Found 1 AMD Phenom(tm) II X6 1100T Processor (6 cpu cores) (version 2.20.00) [ 2.301628] powernow-k8: Core Performance Boosting: on. [ 2.301654] powernow-k8: 0 : pstate 0 (3700 MHz) [ 2.301655] powernow-k8: 1 : pstate 1 (2500 MHz) [ 2.301657] powernow-k8: 2 : pstate 2 (1700 MHz) [ 2.301658] powernow-k8: 3 : pstate 3 (800 MHz) As you can see, Powernow-k8 is considering a wrong pstate 0, which is a lower speed than previously detected in the boot process. This bug is not new. You'll see that I have posted links to discussions over this issue, which was supposed to have been fixed in 2.6 using a patch posted at kernel.org (see http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b810e94c9d8e3fff6741b66cd5a6f099a7887871). A simple Google search for Powernow-k8 wrong pstate 0 reveal many discussion at many distros forums relating this bug. I strongly suggest this bug is taken under consideration. Regards, Effenberg ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/835431 Title: AMD Phenom II X6 1100T cpu (Turbo Core Feature Again) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/835431/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
