I run some PowerTop tests on 5 kernels (the full results are in the attached file) on Ubuntu 11.04 (Dell Studio 1557) In summary: ------------------------------------------------------------------------- Kernel 2.6.38-10 (from Pre-released repositories)
Wakeups-from-idle per second : 54.2 interval: 1.4s Power usage (ACPI estimate): 1.4W (2.9 hours) ------------------------------------------------------------------------- Kernel 2.6.38-9-generic [NO fglrx ATI driver] (the patched one mentioned here in launchpad at #70 ) Wakeups-from-idle per second : 39.5 interval: 3.0s Power usage (ACPI estimate): 2.2W (1.8 hours) ------------------------------------------------------------------------- Kernel 2.6.38-8-generic (The natty default linux kernel) Wakeups-from-idle per second : 50.6 interval: 3.0s Power usage (ACPI estimate): 2.2W (1.7 hours) ------------------------------------------------------------------------- Kernel 2.6.34-020634-generic (from kernel ppa mainline - lucid) Wakeups-from-idle per second : 57.7 interval: 15.0s Power usage (ACPI estimate): 1.5W (1.9 hours) (long term: 1.6W,/1.7h) ------------------------------------------------------------------------ kernel 2.6.32-0206324118-generic (from kernel ppa mainline - lucid) Wakeups-from-idle per second : 76.7 interval: 15.0s Power usage (ACPI estimate): 4.1W (0.5 hours) ------------------------------------------------------------------------ ** Attachment added: "PowerTop on Kernels from Lucid to Natty on Dell Studio 1557" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/760131/+attachment/2167295/+files/kernels%20Natty%20to%20Lucid%20PowerTop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/760131 Title: Power consumption raised significantly in natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/760131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
