Hi,sorry to bump this thread... but however...

I've tried everything on this thread and any others I've found, but nothings working. I'm pretty certain that its due to my lack of /sys/devices/system/cpu/cpu*/cpufreq/ dirs.

Could someone email/link/whatever their directory? Preferablysomeone who has it working for a Centrino Duo, but once I have the files/dirs I can happily edit them til they work.

Many thanks, Matt

The /sys directory structure is not real - it is dynamically created by the kernel. As a result, no one can send you the files, as they don't exist. If you don't have the entries, you are running the wrong kernel.

What is the right kernel? I'm running 2.6.18-1.2849.fc6 i686.

If that's the kernel that you are running, then the problem is your ACPI BIOS. The kernel makes decisions based on the standard field contents returned by the ACPI BIOS. If the information is incorrect, then the kernel will not operate as expected.

Check with your manufacturer for a BIOS update. If you are already at the latest BIOS, complain to the manufacturer. Sometimes they will provide access to beta versions of the BIOS (ASUS does this, for example).

For many manufacturers, getting Windows running first is the priority, since that constitutes the largest customer base. Rather than fix the BIOS, they may provide a utility that runs on Windows to force the expected behavior while not using a correct BIOS. This obviously has no value to Linux users. You need to let them know that.

If you have a choice, run a LiveCD/DVD on a machine before you buy it, to verify proper operation of your distribution. Fedora LiveCD/DVDs are available from the Fedora Unity project.

yeah...you should check if there is any updates on your mobo BIOS. mine one got fixed and cpufreq works like a charm now.

I'm running the latest bios (.220) and emailed Asus... see if they reply now

Usually laptop manufacturer doesn't take much consideration about Linux users. HP released the F.08 BIOS that fixes 90% of the problems I had with linux (except "bad state").

I also have an HP Compaq NX7400 and it works perfectly with Ubuntu 6.10. It's the only distro which comes with psmouse compiled as a module out-of-box (no need to recompile the kernel) and native support for my wireless card (Intel 3945ABG). Other distros (i.e. Fedora Core and SuSE) doesn't use PS/2 mouse support as a module and kernel recompilation makes the ipw3945 driver unusable (I'd have to recompile ieee802.11 and ipw3945 support for each kernel update).

Possibly, I'm going to move to Gentoo or SabayonLinux but I'm afraid of overheating my laptop...