This could be down to your BIOS. Some BIOS can set the frequency depending on whether a laptop is on battery or AC.
elias: Can you test whether there appears to be difference by booting from both AC and battery a few times and comparing the times? -- feisty generic kernel performing worse than i386 https://bugs.launchpad.net/bugs/118765 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