[Bug 572749] [NEW] ASUS 1001p frequency scaling

[Rolf Leggewie]

Public bug reported:

I'm running Lucid with all the latest packages on an ASUS pinetrail
netbook 1001P.  The two CPU cores can run at 1,67GHz, 1,33GHz and 1GHz.

$ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies
1667000 1333000 1000000

But even when the machine is completely idle, on the powersave governor
and on battery, the machine will never drop below 1,33GHz.

When the machine is on AC power something changes the governor to
performance automatically (I certainly want to switch that off).  The
machine then runs at 1,67GHz and the fan starts to run continuously.
I'd rather continue to use on-demand governor and enjoy a quiet machine.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

- I'm running Lucid with all the latest packages on an ASUS netbook 1001P.
- The two CPU cores can run at 1,67GHz, 1,33GHz and 1GHz.
+ I'm running Lucid with all the latest packages on an ASUS pinetrail
+ netbook 1001P.  The two CPU cores can run at 1,67GHz, 1,33GHz and 1GHz.
  
- $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies 
- 1667000 1333000 1000000 
+ $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies
+ 1667000 1333000 1000000
  
  But even when the machine is completely idle, on the powersave governor
  and on battery, the machine will never drop below 1,33GHz.

** Description changed:

  I'm running Lucid with all the latest packages on an ASUS pinetrail
  netbook 1001P.  The two CPU cores can run at 1,67GHz, 1,33GHz and 1GHz.
  
  $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies
  1667000 1333000 1000000
  
  But even when the machine is completely idle, on the powersave governor
  and on battery, the machine will never drop below 1,33GHz.
+ 
+ When the machine is on AC power something changes the governor to
+ performance automatically (I certainly want to switch that off).  The
+ machine then runs at 1,67GHz and then fan starts to run continuously.
+ I'd rather continue to use on-demand governor and enjoy a quiet machine.

** Summary changed:

- 1001p frequency scaling
+ ASUS 1001p frequency scaling

** Description changed:

  I'm running Lucid with all the latest packages on an ASUS pinetrail
  netbook 1001P.  The two CPU cores can run at 1,67GHz, 1,33GHz and 1GHz.
  
  $ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies
  1667000 1333000 1000000
  
  But even when the machine is completely idle, on the powersave governor
  and on battery, the machine will never drop below 1,33GHz.
  
  When the machine is on AC power something changes the governor to
  performance automatically (I certainly want to switch that off).  The
- machine then runs at 1,67GHz and then fan starts to run continuously.
+ machine then runs at 1,67GHz and the fan starts to run continuously.
  I'd rather continue to use on-demand governor and enjoy a quiet machine.

-- 
ASUS 1001p frequency scaling
https://bugs.launchpad.net/bugs/572749
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