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When I was using Ubuntu setting performance in /sys/devices/system/cpu/cpuX/cpufreq/scaling_governor set CPU frequency at 2.4Ghz and setting powersave the frequency was 800Mhz .

But now I'm using Lubuntu (in this last version of Ubuntu it's too difficult to get a normal desktop like gnome2, and I prefer LXDE than Gnome3 or Unity) and the frequency (in performance) is set at 1.2Ghz and in powersave is 150Mhz.

I have a laptop and an Intel T7700 that is a Core2Duo at 2.4Ghz

Any idea?

Here you can see the result of ~$ cpufreq-info

cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], please.
analyzing CPU 0:
driver: p4-clockmod
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.00 ms.
hardware limits: 150 MHz - 1.20 GHz
available frequency steps: 150 MHz, 300 MHz, 450 MHz, 600 MHz, 750 MHz, 900 MHz,     1.05 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 1.20 GHz and 1.20 GHz.
              The governor "performance" may decide which speed to use
              within this range.
current CPU frequency is 1.20 GHz (asserted by call to hardware).
cpufreq stats: 150 MHz:12,55%, 300 MHz:0,00%, 450 MHz:0,00%, 600 MHz:0,00%, 750 MHz:0,00%, 900 MHz:0,05%, 1.05 GHz:0,00%, 1.20 GHz:87,40%  (52)
analyzing CPU 1:
driver: p4-clockmod
CPUs which run at the same hardware frequency: 1
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 10.00 ms.
hardware limits: 150 MHz - 1.20 GHz
available frequency steps: 150 MHz, 300 MHz, 450 MHz, 600 MHz, 750 MHz, 900 MHz, 1.05 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 1.20 GHz and 1.20 GHz.
              The governor "performance" may decide which speed to use
              within this range.
current CPU frequency is 1.20 GHz (asserted by call to hardware).
cpufreq stats: 150 MHz:6,26%, 300 MHz:0,00%, 450 MHz:0,00%, 600 MHz:0,00%, 750 MHz:0,00%, 900 MHz:0,05%, 1.05 GHz:0,00%, 1.20 GHz:93,69%  (36)

I have started the LiveCd of Ubuntu and it allows these frequencies:

ubuntu@ubuntu:~$ sudo cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 
2401000 2400000 2000000 1600000 1200000 800000 

And when I start Lubuntu I can see this error:

 * Starting save kernel messages[74G[ OK ]

FATAL: Error inserting e_powersaver (/lib/modules/3.0.0-12-generic/kernel/drivers/cpufreq/e_powersaver.ko): No such device

FATAL: Error inserting acpi_cpufreq (/lib/modules/3.0.0-12-generic/kernel/drivers/cpufreq/acpi-cpufreq.ko): Device or resource busy

 * Stopping save kernel messages[74G[ OK ]

FATAL: Error inserting pcc_cpufreq (/lib/modules/3.0.0-12-generic/kernel/drivers/cpufreq/pcc-cpufreq.ko): No such device

 * Stopping anac(h)ronistic cron[74G[ OK ]
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closed as off topic by bodhi.zazen, Bruno Pereira Mar 8 '12 at 9:38

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions here. –  bodhi.zazen Mar 8 '12 at 5:46

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