Enabling frequency scaling on my everex cloudbook
after the upgrade to ubuntu intrepid ibex (kernel 2.6.27.x) i have good sound and the syste is moving faster
maybe is because of the new io sheduler 
but the frequency scaling is not enabled (default cpu speed is 600mhz)
so i have compile it 
download the latest stable kernel from kernel.org

in my case  
$wget http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.27.4.tar.bz2
$tar -jxvf linux-2.6.27.4.tar.bz2
$cd /usr/src/linux-2.6.27.3/arch/x86/kernel/cpu/
$sudo mv cpufreq /opt/build/
$ cd /opt/build/cpufreq

$vi Makefile
default:

$(MAKE) -C /lib/modules/`uname -r`/build M=`pwd` modules

clean:

rm -rf *.o .*.cmd *.ko *.mod.c .tmp_versions Module.symvers

obj-m += e_powersaver.o

Now you need to make it 
$make

$cp e_powersaver.ko /lib/modules/2.6.27-7-generic/kernel/drivers/cpufreq/
$ sudo depmod -ae
$ sudo modprobe e_powersaver
$ cpufreq-set -g performance

now my cpu is idling at 1200 mhz 
cat /proc/cpuinfo

processor : 0

vendor_id : CentaurHauls

cpu family : 6

model : 13

model name : VIA C7-M Processor 1200MHz

stepping : 0

cpu MHz : 1199.952

cache size : 128 KB

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 1

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge cmov pat clflush acpi mmx fxsr sse sse2 tm nx up pni est tm2 xtpr rng rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en

bogomips : 2399.92

clflush size : 64

power management:

a good idea is to put the module at startup too 
in 
/etc/modules

add 
e_powersaver

another good command line 

cpufreq-info

analyzing CPU 0:

  driver: e_powersaver

  CPUs which need to switch frequency at the same time: 0

  hardware limits: 400 MHz - 1.20 GHz

  available frequency steps: 400 MHz, 500 MHz, 600 MHz, 700 MHz, 800 MHz, 900 MHz, 1000 MHz, 1.10 GHz, 1.20 GHz

  available cpufreq governors: ondemand, userspace, conservative, powersave, performance

  current policy: frequency should be within 400 MHz and 1.20 GHz.

                  The governor "performance" may decide which speed to use

                  within this range.

  current CPU frequency is 1.20 GHz.

or if you need an low noise system 

$ cpufreq-set -g ondemand