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.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gnucco 2265 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 : 34
Simple ctrls : 21
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-2.6.32-33-generic root=/dev/sda3 video=efifb ro splash
ProcEnviron:
PATH=(custom, user)
LANG=it_IT.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-33.72-generic 2.6.32.41+drm33.18
Regression: No
RelatedPackageVersions: linux-firmware 1.34.7
Reproducible: Yes
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Tags: lucid needs-upstream-testing
Uname: Linux 2.6.32-33-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.
Is there a kernel parameter to disable acpi-cpufreq module, which is builtin, from loading at boot?
This way I could try and see wether p4-clockmod works instead.