no or unknown cpufreq driver is active after disabling intel_pstate driver

After disabling **intel_pstate** driver, I get the following error:

cpupower frequency-info
analyzing CPU 0:
  no or unknown cpufreq driver is active on this CPU
  CPUs which run at the same hardware frequency: Not Available
  CPUs which need to have their frequency coordinated by software: Not Available
  maximum transition latency:  Cannot determine or is not supported.
Not Available
  available cpufreq governors: Not Available
  Unable to determine current policy
  current CPU frequency: Unable to call hardware
  current CPU frequency:  Unable to call to kernel
  boost state support:
    Supported: yes
    Active: yes

I would like to use the **acpi-cpufreq** module instead, in order to have the governor userspace available and set specific CPU frequencies.