[Bug 669865] Re: acpi-cpufreq doesn't set the cpu frequencies right on macbook 2, 5

[dentament]

apport information

** Tags added: apport-collected

** Description changed:

  No matter which governor and/or frequency I set via cpufreq-set, the 2 cores on my macbook 2,5 are always running at the slowest frequency, ie 1.60 ghz, according to cpufreq-info readings *from hardware*.
  According to cpufreq-info readings from cpufreq-core, the frequency varies, but it doesn't.
  In other terms, "/sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq" always reports "1596000" (1.60 Ghz), no matter what "/sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq" is reporting.
  According to "Documentation/cpu-freq/user-guide.txt":
  
  
  cpuinfo_cur_freq :              Current frequency of the CPU as obtained from
                                  the hardware, in KHz. This is the frequency
                                  the CPU actually runs at.
  
  scaling_cur_freq :              Current frequency of the CPU as determined by
                                  the governor and cpufreq core, in KHz. This is
                                  the frequency the kernel thinks the CPU runs
                                  at.
+ --- 
+ AlsaVersion:
+  Advanced Linux Sound Architecture Driver Version 1.0.23.
+  Compiled on Sep 27 2010 for kernel 2.6.32-25-generic (SMP).
+ Architecture: amd64
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  gnucco     2620 F.... pulseaudio
+ CRDA: Error: [Errno 2] Nessun file o directory
+ Card0.Amixer.info:
+  Card hw:0 'NVidia'/'HDA NVidia at 0x93480000 irq 20'
+    Mixer name	: 'Realtek ALC889A'
+    Components	: 'HDA:10ec0885,106b4a00,00100103'
+    Controls      : 32
+    Simple ctrls  : 20
+ DistroRelease: Ubuntu 10.04
+ HibernationDevice: RESUME=UUID=5fa322db-6dac-46de-aba5-f367831157d2
+ InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
+ MachineType: Apple Inc. MacBook5,2
+ NonfreeKernelModules: wl nvidia
+ Package: linux (not installed)
+ ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-25-generic root=/dev/sda3 video=efifb acpi=force ro quiet splash
+ ProcEnviron:
+  PATH=(custom, user)
+  LANG=it_IT.utf8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.32-25.45-generic 2.6.32.21+drm33.7
+ Regression: No
+ RelatedPackageVersions: linux-firmware 1.34.1
+ Reproducible: Yes
+ RfKill:
+  0: hci0: Bluetooth
+  	Soft blocked: no
+  	Hard blocked: no
+ Tags: lucid  needs-upstream-testing
+ Uname: Linux 2.6.32-25-generic x86_64
+ UserGroups: adm admin audio cdrom dialout games lpadmin plugdev sambashare vboxusers
+ dmi.bios.date: 04/16/09
+ dmi.bios.vendor: Apple Inc.
+ dmi.bios.version: MB52.88Z.0088.B05.0904162222
+ dmi.board.asset.tag: Base Board Asset Tag#
+ dmi.board.name: Mac-F22788AA
+ dmi.board.vendor: Apple Inc.
+ dmi.chassis.asset.tag: Asset Tag#
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: Apple Inc.
+ dmi.chassis.version: Mac-F22788AA
+ dmi.modalias: dmi:bvnAppleInc.:bvrMB52.88Z.0088.B05.0904162222:bd04/16/09:svnAppleInc.:pnMacBook5,2:pvr1.0:rvnAppleInc.:rnMac-F22788AA:rvr:cvnAppleInc.:ct10:cvrMac-F22788AA:
+ dmi.product.name: MacBook5,2
+ dmi.product.version: 1.0
+ dmi.sys.vendor: Apple Inc.

** Attachment added: "AlsaDevices.txt"
   https://bugs.edge.launchpad.net/bugs/669865/+attachment/1720922/+files/AlsaDevices.txt

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acpi-cpufreq doesn't set the cpu frequencies right on macbook 2,5
https://bugs.launchpad.net/bugs/669865
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