On Wed, 2004-12-29 at 20:40 -0500, Matthew Harrell wrote: > Hi. I get the following message so I figured I would send you an email > > speedstep-centrino: invalid ACPI data > speedstep-centrino: found unsupported CPU with Enhanced SpeedStep: send /proc/cpuinfo to Jeremy Fitzhardinge > > The cpu info file is attached. Is there a simple change I can do to get this > to work on this laptop? The "invalid ACPI data" suggests that a BIOS update might help. Unfortunately the driver can't do anything for an EST-enabled mobile P4 without the ACPI data. I don't know too much about ACPI, so I've cc:'d this to the cpufreq mailing list. J