Most recent kernel where this bug did not occur: Any 2.6.x kernel Distribution: Gentoo Linux Hardware Environment: Dell Latitude D800 Pentium M 1.70 GHz (Dothan) Software Environment: Problem Description: Every time I unplug the ac adapter, cpufreq want go up to 1.70 GHz. cpufreq-info reports wrongly "frequency should be within 600 MHz and 600 MHz" If I plugin the ac adapter again and wait a couple of seconds, speedstepping works correct again. I have tried both with acpi-cpufreq and speedstep-centrino driver. It also happens with every governor. Steps to reproduce: 1. unplug ac adapter 2. cpufreq-info displays wrong maximum frequency.
I made a mistake in the first line and could not find the edit button: Every time I unplug the ac adapter, cpufreq DOES NOT want TO go up to 1.70 GHz.
I think this problem could be related with bug #6370
*** This bug has been marked as a duplicate of 6331 ***