Hi, all. I'm new to the list. Vital stats: * Ubuntu Dapper (6.06) * Kernel 2.6.15-27-amd64-generic * Laptop * Used the update-rc.d command to remove GNOME from startup, so my system boots to the shell prompt. If the computer is plugged in while I boot, I don't have any problems. If it's on battery, I get the following text on my screen after the system has booted: ..... Ubuntu 6.06.1 LTS [ComputerName] tty1 [ComputerName] login: [ 100.725531] powernow-k8: ignoring illegal change in low freq table-2 to 0x2 [ 100.726009] powernow-k8: transition frequency failed [ 101.728383] powernow-k8: ignoring illegal change in lo freq table-2 to 0x2 [ 101.728736] powernow-k8: transition frequency failed [ 355.951446] powernow-k8: ignoring illegal change in lo freq table-2 to 0x2 [ 355.951625] powernow-k8: transition frequency failed ..... If I type Ctrl-d, it prompts for login, and all is well. Following are boot messages regarding 'powernow-k8' when on battery: ..... powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.50.4) powernow-k8: 0 : fid 0xc (2000 MHz), vid 0x2 (1500 mV) powernow-k8: 1 : fid 0xa (1800 MHz), vid 0x6 (1400 mV) powernow-k8: 2 : fid 0x2 (1000 MHz), vid 0x10 (1150 mV) powernow-k8: ignoring illegal change in lo freq table-2 to 0x2 powernow-k8: transition frequency failed ..... I found a possible solution at http://ubuntuforums.org/archive/index.php/t-3585.html , though I don't know if it applies, and I don't know how to use it if it does. Can someone help me make sense of this? Thanks in advance, Danielle - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs