[Bug 581434] [NEW] MacBook CPU's run at 100% when power supply connected

[mdgill]

Public bug reported:

When I have the power supply connected to my MacBook 4,1, the System
Monitor reports that both CPU's are maxed out at 100%.  The system heats
up drastically and the fan runs non-stop.  When I disconnect the power
supply, the CPU's drop to a normal level, the system cools down, and the
fan slows down.  This problems occurs consistently.

I installed applesmc-dkms after reading about Bug #262550
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/262550).  This did
not affect the problem, but I thought I should mention it since it is an
addition to the standard release that might affect trouble shooting.

Description:	Ubuntu 10.04 LTS
Release:	10.04

I also tried:
$ apt-cache policy packagename
W: Unable to locate package packagename
Is it "synaptic 0.63.1"?

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.33
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  michael    1909 F.... pulseaudio
 /dev/snd/pcmC0D0p:   michael    1909 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x90700000 irq 20'
   Mixer name	: 'Realtek ALC889A'
   Components	: 'HDA:10ec0885,106b3600,00100103'
   Controls      : 35
   Simple ctrls  : 22
CheckboxSubmission: 26397d0c45d29f9d3144ab6ec76eee5b
CheckboxSystem: e2a9e28435948e86843155dc45ba128e
Date: Sun May 16 14:19:11 2010
HibernationDevice: RESUME=UUID=56bac727-ac57-4dbc-97b6-4326d7fe4126
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Apple Inc. MacBook4,1
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=620f48ac-38ae-4c4d-9edd-049ece60ed12 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
 0: hci0: Bluetooth
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 02/09/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MB41.88Z.00C1.B00.0802091535
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F22788A9
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F22788A9
dmi.modalias: dmi:bvnAppleInc.:bvrMB41.88Z.00C1.B00.0802091535:bd02/09/08:svnAppleInc.:pnMacBook4,1:pvr1.0:rvnAppleInc.:rnMac-F22788A9:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788A9:
dmi.product.name: MacBook4,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

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


** Tags: amd64 apport-bug lucid needs-upstream-testing regression-release

-- 
MacBook CPU's run at 100% when power supply connected
https://bugs.launchpad.net/bugs/581434
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